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iSpring WGB21B 2-Stage Whole House Water Filtration System, with 10" x 4.5" Sediment CTO(Chlorine, Taste, and Odor) Filter, 1" Inlet/Outlet (WGB21B)
Powerful 2-Stage Filtration – The iSpring WGB21B whole house water filtration system includes a 10" x 4.5" sediment filter and a CTO carbon block filter — removing up to 99% of chlorine, along with sediments, rust, tastes, odors, herbicides, and more for clean, odor-free water.
Compact Yet Powerful: Ideal for apartments, smaller homes, or vacation properties, this 10” x 4.5” whole house water filter fits tight spaces while delivering long-lasting, high-performance filtration.
Built to Last – Designed for durability, this water filter system delivers reliable performance for up to 50,000 gallons or 12 months, depending on water usage and quality. It is a long-lasting solution for those seeking a dependable whole house water filtration system.
Quick and Easy Installation – Designed with a 1” NPT inlet/outlet and 10” x 4.5” filters, this water filter system for home delivers a strong water flow (up to 15 GPM) while requiring minimal maintenance.
Easy Filter Changes — Built-in pressure release buttons let you swap filters fast and mess-free.
Peace of Mind Guaranteed – Supported by a 1-year limited warranty and lifetime technical support from our U.S.-based customer service team. Whether you're purchasing your first whole house water filtration system or replacing your current home water filter, we're here to help—before and after your purchase.
Sealed for Quality — Every cartridge is individually wrapped to ensure freshness and peak performance. Be sure to unwrap before use.
Healthy Minerals Retained – This filter retains healthy minerals and does not reduce TDS. For total dissolved solids removal, explore our iSpring Reverse Osmosis systems—perfect complements to any water filtration system for house or whole home water filtration system.
iSpring WGB21B-KSNC Whole House Water Filter System, SGS-Tested to Remove up to 94.4% of Chloramine, 5-Layer Filtration Reduces Heavy Metals, Lead, Chlorine, Sediment, VOC, 10” x 4.5” Filters (WGB21B-KSNC)
Premium Whole House Filtration System: The whole house water filter system delivers powerful whole-home protection. The 1st stage FG15KS features a GAC + KDF heavy metal removal filter that targets lead, mercury, hydrogen sulfide, pesticides, herbicides, and other chemical contaminants. The 2nd stage FC15B-NC uses an advanced catalytic carbon filter engineered for strong chloramine and chlorine reduction, and improved taste and odor. They form a high-efficiency whole house water filtration system that provides cleaner, fresher water from every tap—an ideal water filter whole house solution for both municipal and well water.
High Flow, Compact Design: Built With 1" inlet/outlet ports, this whole house water filter system delivers strong water flow up to 15 GPM. The compact 10” x 4.5” size fits tight spaces, making it ideal for condos, apartments, and small homes needing a space-saving whole house water filtration system. It provides reliable performance for anyone seeking an efficient water filter whole house or home water filter system whole house solution without sacrificing flow.
Built to Last – Durable Whole House Protection: Engineered for long-term reliability, this whole house water filter system features reinforced housings, leak-resistant construction, and premium filtration media. Designed for up to 50,000 gallons of use, it provides dependable whole home water filtration for heavy metal reduction, chloramine reduction, and both well-water and municipal water applications—an ideal, long-lasting whole house water filtration system for your home.
DIY & Easy Installation: The WGB31B-KSNC whole house water filtration system uses 1” NPT connections and standard 10” x 4.5” cartridges for DIY-simple installation with the help of our detailed manual and YouTube tutorials. It delivers strong water flow (up to 15 GPM) and offers low maintenance.
Peace of Mind Guaranteed: This Chloramine whole home water filtration system is backed by a 1-year warranty and lifetime U.S.-based technical support, and it keeps healthy minerals without reducing TDS—so for dissolved solids removal, simply pair this water filtration system for house with an iSpring Reverse Osmosis system.
Please Note: This water filter system retains healthy minerals and does not reduce TDS. For dissolved solids removal, explore our iSpring Reverse Osmosis systems—perfect complements to any water filtration system for house or whole home water filtration setup.
iSpring WGB21B-KS WSP100 2-Stage Whole House Filtration System, Removes up to 99% Heavy Metal, Chlorine, Taste, and Odor, 15 GPM, w/ WSP100 100-Micron Reusable Spin Down Sediment Prefilter (WGB21BKS WSP100)
Removes major contaminants and improves taste and odor: Removes up to 99% of contaminants including sediments, chlorine, lead, mercury and various heavy metals.
High capacity for household use: Coconut shell carbon CTO plus KDF plus GAC second stage provide up to 50,000 gallons capacity so a typical family can expect prolonged service before replacement. Recommended filter change every 8 to 12 months depending on water quality.
Maintains strong water delivery: 1 inch inlet and outlet ports with maximum flow rated up to 15 gallons per minute to support multiple fixtures and maintain comfortable household water pressure.
Easy DIY installation and serviceability: System ships preassembled on a mounting bracket, includes a filter wrench and a pressure release feature for safer, quicker cartridge changes. CTO carbon block uses coconut shell carbon and second stage uses KDF GAC media.
Prefilter protection that’s flushable and reusable: The iSpring WSP-100 spin down prefilter features a 100-micron stainless steel mesh, solid lead-free brass head, flushable design and a max flow rating up to 20 GPM to capture coarse sediment and extend main filter life
iSpring WGB21BM WSP50 2-Stage Whole House Water Filtration System, Removes Iron, Manganese, Chlorine, and Odors, Clean Water up to 15 GPM, w/ WSP50 50-Micron Reusable Spin Down Sediment Prefilter (WGB21BM WSP50)
Cleaner, Better-Tasting Water: High-quality coconut shell carbon block filters out over 90% of chlorine, unpleasant odors, and cloudiness, delivering refreshing water to every faucet in your home.
2-Stage Whole House Filtration: The WGB21BM effectively removes iron up to 3.0 ppm and manganese up to 1.0 ppm, eliminating red and black stains on fixtures and appliances while improving overall water clarity.
Protects Plumbing and Appliances: Reduces rust, scale, and discoloration caused by iron and manganese buildup, extending the life of pipes, water heaters, and household appliances.
High Flow and Easy Maintenance: 1" inlet/outlet design supports up to 15 gallons per minute with minimal pressure drop; comes pre-assembled with a mounting bracket and wrench for quick filter changes.
Reusable Sediment Prefilter: The WSP50 spin down filter captures sand, silt, and larger particles down to 50 microns. Simply flush the stainless steel mesh screen to maintain strong flow and prolong cartridge lifespan.
iSpring F2WGB21BPF 2-Stage Whole House Water Filter Replacement Set for WGB21B-PF，Reduces up to 99% PFAS (PFOA/PFOS), 10” x 4.5” Filters, 1" Inlet/Outlet (F2WGB21BPF)
Targets Harmful PFAS Chemicals – The FC15B-PF carbon block filter is independently tested to reduce up to 99% of PFAS, including PFOA and PFOS, providing reliable protection from “forever chemicals” commonly found in municipal and well water.
Chlorine, Taste & Odor Reduction – In addition to PFAS, the carbon filter also reduces chlorine, VOCs, and unpleasant taste and odor, while the sediment filter captures rust, dirt, and sand to protect plumbing.
High Capacity & Long Lifespan – Each cartridge lasts up to 6 months or treats 50,000 gallons of water, depending on usage and water quality. Fits standard 10” x 4.5” housings in most home water filtration systems.
Peace of Mind Guaranteed – Backed by a 1-year limited warranty and lifetime technical support from our U.S.-based customer service team. Whether you’re buying your first system or replacing filters, we’re here to help before and after your purchase.
Please Note – This filter retains healthy minerals and does not reduce TDS. For total dissolved solids removal, pair with an iSpring Reverse Osmosis system—an ideal complement to any whole house water filtration system.
iSpring F2WGB21BPFKS 2-Stage Whole House Water Filter Replacement Set, Compact 10” x 4.5” Filters for PFAS, Heavy Metals, Chlorine & Odor Reduction, SGS-Tested Media, Fits Standard Home Systems (F2WGB21BPFKS)
PFAS Filtration Tested by SGS – The FC15B-PF carbon block filter features high-performance media tested by SGS to reduce up to 99% of PFAS, including PFOA and PFOS, while also targeting VOCs and chemical byproducts without affecting beneficial minerals.
Removes Chlorine, Lead & Odors – The FG15B-KS GAC KDF filter reduces chlorine, lead, mercury, hydrogen sulfide, and unpleasant taste and odor, making it suitable for both city and well water that require chemical and heavy metal protection.
Removes Chlorine, Lead & Odors – The FG15B-KS GAC KDF filter reduces chlorine, lead, mercury, hydrogen sulfide, and unpleasant taste and odor, making it suitable for both city and well water that require chemical and heavy metal protection.
Compact Size, Full Performance – Designed for homes with limited space, these 10” x 4.5” filters deliver full performance at the point of entry. Each cartridge treats up to 50,000 gallons or lasts 6-12 months depending on water quality.
Peace of Mind Guaranteed – Backed by a 1-year limited warranty and lifetime technical support from our U.S.-based customer service team. We’re here to support you before and after your purchase.
Please Note – This filter retains healthy minerals and does not reduce TDS. For total dissolved solids removal, pair with an iSpring Reverse Osmosis system—an excellent complement to any whole house water filter system.
iSpring WGB21B 2-Stage Whole House Water Filtration System, Reduces Sediment, Chlorine, Taste, and Odor, 10” x 4.5” Filters with 1” Inlet/Outlet, w/Additional 6-Month Replacement Filter Set (WGB21BF2)
Powerful 2-Stage Filtration - Reduces sediment, rust, chlorine, unpleasant tastes and odors, as well as volatile organic compounds (VOCs) such as pesticides, herbicides, and industrial solvents—providing cleaner, safer water to every faucet in your home.
High Capacity with Consistent Flow - The 10" x 4.5" filters deliver up to 50,000 gallons of filtered water—ideal for a family of four. The 1” inlet and outlet ensure a steady flow rate with minimal pressure drop, supporting your household’s daily water needs.
Quick Installation & Easy Maintenance - Comes pre-assembled on a durable mounting bracket for DIY-friendly installation. Includes filter wrench and a built-in pressure release valve to simplify filter changes and maintenance.
Retains Healthy Minerals - Unlike reverse osmosis systems, this system does not lower Total Dissolved Solids (TDS), helping preserve beneficial minerals naturally found in your water.
Certified High-Performance Filter Pack - Includes a 5-micron polypropylene sediment filter (FP15B) and a coconut shell carbon CTO filter (FC15B), both tested against NSF/ANSI 42 standards for material safety and water quality. Effectively reduces sediment, rust, chlorine, unpleasant taste, odors, and organic chemicals. Each set lasts up to 6 months or 50,000 gallons, depending on water quality—helping extend system life and maintain optimal performance.
Reliable Support & Warranty - Backed by a 30-day money-back guarantee and a 1-year warranty, with lifetime customer and technical support from our U.S.-based team in Atlanta, GA. Register your product for extended warranty coverage.
iSpring F2WGB21BCPB 10" x 4.5" Whole House Water Filters for WGB21B Series Water Filter Systems, includes Sediment and Lead-Removal Filters (F2WGB21BCPB)
Lead Removal: The media of the FC15B-PB filter can effectively remove up to 99% of lead from your water, ensuring safer drinking water for your household.
Comprehensive Heavy Metal Filtration: Featuring advanced MetSorb media, our FC15B-PB water filter efficiently removes heavy metals like arsenic (III & V), lead, mercury, cadmium, and more. This superior filtration extends the lifespan of the filter, reducing replacement frequency. (Note: This product is independently manufactured by iSpring and is not affiliated with MetSorb.)
Superior Sediment Filtration: The first stage utilizes a high-performance polypropylene (PP) sediment filter, capturing particles as small as 5 microns. This pre-filtration step not only ensures optimal water quality but also prolongs the life of the subsequent filters by preventing clogs.
Standard Size: Our filters fit standard 10” x 4.5” housings, including brand-name models.
Built to Last: Your filter changing schedule will depend on the contamination level of your source water. We recommend changing your filters every 12 months or after filtering up to 50,000 gallons of water.
Guaranteed Freshness: Each cartridge is individually wrapped to maintain optimal freshness. Please unwrap before use.
Peace of Mind Support: Register online to activate your warranty and enjoy lifetime free tech support from our U.S.-based team. We stand by our products—if you encounter any issues, contact us immediately, and we’ll gladly assist!
Important Note: This filter does not reduce Total Dissolved Solids (TDS) like an RO membrane. If TDS removal is your goal, we recommend exploring our iSpring Reverse Osmosis (RO) systems.
iSpring WGB21B-CPB 2-Stage Whole House Water Filtration System Reduces Arsenic, Cadmium, Mercury, Sediments, Chlorine, and up to 99% Lead, 1" Inlet/Outlet Ports (WGB21B-CPB)
SGS-Tested Lead Removal: The media of the third-stage FC15B-PB filter has been rigorously tested by SGS. It effectively removes up to 99% of lead from your water, ensuring safer drinking water for your household.
Powerful 2-Stage Filtration: The iSpring WGB21B-CPB whole house water filtration system includes a 10” x 4.5” sediment filter, and a lead removal filter — removing up to 99% of lead, along with sediments, chlorine, tastes, odors, and trace of other heavy metals like arsenic, cadmium, mercury and more for clean odor-free water.
Compact Yet Powerful: Ideal for apartments, smaller homes, or vacation properties, this 10” x 4.5” whole house water filter fits tight spaces while delivering long-lasting, high-performance filtration.
Built to Last: Designed for durability, this whole house water filter system delivers reliable performance for up to 50,000 gallons or 12 months, depending on water usage and quality. It is a long-lasting solution for those seeking a dependable whole home water filtration system.
Quick and Easy Installation: Designed with a 1” NPT inlet/outlet and 10” x 4.5” filters, this water filter system for home delivers a strong water flow (up to 15 GPM) while requiring minimal maintenance.
Easy Filter Changes: Built-in pressure release buttons let you swap filters fast and mess-free.
Peace of Mind Guaranteed: Supported by a 1-year limited warranty and lifetime technical support from our U.S.-based customer service team. Whether you're purchasing your first whole house water filtration system or replacing your current home water filter, we're here to help—before and after your purchase.
iSpring WGB21B-PB 2-Stage Whole House Water Filtration System w/ 10” x 4.5” Carbon Block FC15B and Lead Reducing Filter FCRC15B, 1" Inlet/Outlet Ports (WGB21B-PB)
[Protect Your Family and Household Appliance from Lead and More] Our 2nd stage filter (FCRC15B) lead removal filter is specially designed for reducing lead. This filter features a high filtration capacity of 50, 000 gallons of lead-loaded water, effectively reducing lead level from as high as100 ppb to 15 ppb (the EPA standard for drinking water) and less.
[Premium Quality] The first stage CTO Carbon Block filter(FC15B) is made of high quality coconut shell carbon for maximum filtration efficiency and filter life. It is tested by an independent third-party to meet NSF/ANSI standards. The filter has a capacity of 50, 000 gallons of water, enough to supply a family of four with clean water for half a year.
[DIY Installation and Maintenance] Refer to our manual and our helpful YouTube videos for easy DIY installation to splice in this Point-of-Entry (P. O. E. ) system into your home's main water line. With 1” NPT inlet/outlet and 10” x 4. 5” filter cartridges, the system has minimum impact on water flow (up to 15 GPM) and requires minimum maintenance.
[Top-Notch Customer Service] Backed by a 30-day money-back guarantee. 1-year manufacturer warranty and extended upon registration at iSpring. Lifetime tech support from Atlanta, GA.
[TDS Note] Unlike an RO system, this system will NOT reduce Total Dissolved Solids (TDS), and instead keeps healthy minerals in your water. If you are interested in a filter that removes TDS, please consider our iSpring RO systems.
iSpring WGB21BM 2-Stage Whole House Water Filtration System, 10” x 4.5” Carbon Block and Iron & Manganese Reducing Filters, 1" Ports (WGB21BM)
Two-Stage Effective Filtration Our featured 2nd stage filter (FM15B) is specially designed for iron and manganese removal, reducing iron (Max 3.0 ppm down to 0.01 ppm) and manganese (Max 1.0 ppm down to 0.01 ppm). Using high quality coconut shell carbon and highly compact fabrication tech, 1st-stage CTO filter(FC15B) knocks out cloudiness as well as bad tastes and odors, removes over 90% of chlorine, and is highly effective on VOCs like herbicides and industrial solvents. iSpring WGB21BM is THE system you need to protect your family and household appliance from iron, manganese, and more.
Easy Installation and Filter Change The system comes pre-assembled onto the mounting bracket for a streamlined, DIY installation. Filter wrench included to make routine filter changes easy and quick. Refer to our manual and our helpful YouTube videos to install this point-of-entry (POE) filtration system at the main water supply to get clean and healthy water for the entire family. With 1 NPT inlet/outlet and 10 x 4.5 filter cartridges, the system has a minimum impact on water flow (up to 15 GPM) and requires minimum maintenance.
Top-Notch Quality The first stage CTO Carbon Block filter is made of high-quality coconut shell carbon for maximum filtration efficiency and filter life. It is tested by an independent third-party to meet NSF/ANSI standards. The iron and manganese reducing filter lasts up to 3 times longer than greensand due to the catalytic media not being consumed in the process. Those filters have a filtration capacity of up to 50,000 gallons of water, enough to supply a family of four with clean water for up to a year.
Please Note This system is installed at the main water supply line in order to treat all the water in your home. For well/pond water with very high iron/manganese please contact us for customized solutions. Unlike an RO system, this system will NOT reduce Total Dissolved Solids (TDS) and instead keeps healthy minerals in your water. If you are interested in a filter that removes TDS, please consider our iSpring Reverse Osmosis (RO) systems RCC7 series or tankless RO500.
iSpring F2WGB21BPB Whole House 4.5"x10" Water Filtration CTO Carbon Block and Lead Reducing Water Filter Replacement Cartridge Pack Set (F2WGB21BPB)
[Great Compatibility] As the official replacement filter set for iSpring whole house water filtration system WGB21B-PB, this filter pack consists of one 10"x4.5" CTO carbon block filter(FC15B) and one 10"x4.5" lead reducing water filter(FCRC15B). Fits standard 10"x4.5” whole house water filtration systems.
[Highly Activated Carbon Block CTO Filter] Using high quality coconut shell carbon and highly compact fabrication tech, iSpring CTO filter FC15B knocks out cloudiness as well as bad tastes and odors, removes up to 99% of chlorine, and is highly effective on Organic Compounds like herbicides and industrial solvents and other contaminants like trihalomethanes.
[Lead Reducing] 2nd stage filter FCRC15B is specially designed for lead reducing. It features a filtration capacity of up to 80, 000 gallons of water, reducing lead level from 100 ppb to 15 ppb (the EPA standard for drinking water) and less. Together with 1st stage carbon block filter FC15B, this filter meets your water filtration needs to protect your family and household appliances from iron, lead, and more.
[Easy Filter Change] Individually sealed for freshness. Depending on source water quality, replace the filters every 6 months to achieve optimal performance. Please refer to our manual and our helpful YouTube videos for filter change tips if needed.
[TDS Note] The system this filter pack works for is installed at the main water supply line in order to treat all the water in your home. Unlike an RO system, this system will NOT reduce Total Dissolved Solids (TDS) and instead keeps healthy minerals in your water. If you are interested in a filter that removes TDS, please consider our iSpring Reverse Osmosis (RO) systems such as RO500, RCC7, RO100 and more.
[Peace-of-mind Customer Support] Your risk-free shopping experience is backed by a 30-day money-back guarantee, extended manufacturer warranty, and lifetime tech support from iSpring in Atlanta, GA.
iSpring WGB21B-DS 2-Stage Whole House Water Filtration System, with 10" x 4.5" Sediment CTO(Chlorine, Taste, and Odor) Filter, Anti-Scale polyfilter, 1" Inlet/Outlet (WGB21B-DS)
Two-Stage Effective Filtration with Anti-Scale Filter: Our whole house water filter features a powerful 1st-stage CTO filter (FC15B) that eliminates cloudiness, bad tastes, and odors. It removes over 90% of chlorine and effectively targets herbicides and industrial solvents. The 2nd-stage anti-scale ployfilter (FWDS80K) protects your household appliances and plumbing from scale. Our patented scale inhibitor efficiently sequesters calcium and magnesium, preventing scale buildup and clearing partially clogged piping.
Superb Filtration Capacity: Experience up to a full year of clean water (up to 50,000 gallons) for a family of four with our 10x4.5 replaceable whole house water filters. The 1-inch inlet and outlet ports ensure fast water flow with minimal pressure loss. Our premium quality CTO filter and anti-scale filter not only provide clean and fresh water to every faucet in your house but also extend the life of your water-using appliances and protect plumbing from sediment and scale buildup. They also inhibit corrosion on iron, steel, galvanized, copper, and lead pipes by forming a protective coating on their surfaces.
Easy Installation and Filter Change: The system comes pre-assembled on a mounting bracket for a streamlined, DIY installation. We include a filter wrench to make routine filter changes quick and easy. Additionally, a pressure release valve allows for the safe release of built-up pressure during filter changes. Consult our comprehensive manual and YouTube videos to install this point-of-entry (POE) filtration system at the main water supply and enjoy clean and healthy water for your entire family.
Retain Valuable Minerals: Unlike an RO system, our filtration system does NOT reduce Total Dissolved Solids (TDS), ensuring your water retains essential minerals that are beneficial to your health. If you're interested in a filter that removes TDS, consider exploring our iSpring Reverse Osmosis (RO) systems.
Peace-of-Mind Customer Service: We stand by the quality of our products, and your satisfaction is our top priority. Backed by a 30-day money-back guarantee and a 1-year warranty, our filtration system also includes an extended manufacturer warranty upon registration at iSpring. Our lifetime customer support and technical assistance from Atlanta, GA, USA, provide you with peace of mind. If you encounter any issues with our products, please reach out to us immediately. We are always here to help!
iSpring WGB21B-KS Whole House Water Filter System, Reduces Heavy Metals, Lead, Chlorine, Chloramine, Sediments, 2-Stage Filtration, 10” x 4.5” Filters, 1” Inlet/Outlet (WGB21B-KS)
High Capacity Filters: The iSpring WGB21B-KS is a 2-stage whole house water filtration system featuring a 1st-stage CTO carbon block filter (FC15B) and a 2nd-stage KDF plus GAC carbon filter (FG15B-KS) . These filters work together to effectively remove up to 99% of contaminants, including chlorine, lead, mercury, and various heavy metals. Say goodbye to turbidity, cloudiness, bad taste, and foul odors (like hydrogen sulfide that smells like rotten eggs) for fresher, cleaner water throughout your home.
Great Water Flow: With its clever connection design and 1" inlet and outlet ports, the iSpring WGB21B-KS delivers impressive water flow rates of up to 15 GPM. For optimal filtration performance, we recommend changing the filters every 8-12 months based on the contaminant levels in your water source and usage.
Top-Notch Quality: The first stage CTO Carbon Block filter is made of high-quality coconut shell carbon for maximum filtration efficiency and filter life. It is tested by an independent third party to meet NSF/ANSI standards. The KDF filter is super powerful to remove the unpleasant taste or odor left in chlorinated water while maintaining the protection benefits of chlorine. They also tackle problems like turbidity, cloudiness, colors, bad taste, and odors like hydrogen sulfide that smells like rotten eggs.
Effectively Removes Contaminants：A reliable shield that protects you and your family from ingesting harmful chemicals or contaminants in your tap water. Those filters have a filtration capacity of up to 50,000 gallons of water, enough to supply a family of four with clean water for up to a year.
Easy Installation and Filter Change: The system comes pre-assembled onto the mounting bracket for a streamlined, DIY installation. Filter wrench included to make routine filter changes easy and quick. A pressure release valve allows for the release of built-up pressure when changing filters. Refer to our manual and/or YouTube videos to Install this point-of-entry (POE) filtration system at the main water supply to get clean and healthy water for the entire family.
Please Note: This system is installed at the main water supply line in order to treat all the water in your home. Unlike an RO system, this system will NOT reduce Total Dissolved Solids (TDS) and instead keeps healthy minerals in your water. If you are interested in a filter that removes TDS, please consider our iSpring Reverse Osmosis (RO) systems RCC7 series or tankless RO500.
iSpring F2WGB21BDS Whole House 4.5"x10" Water Filtration CTO Carbon Block and Anti-Scale Polyfilter Water Filter Replacement Cartridge Pack Set for WGB21B-DS (F2WGB21BDS)
Economical Replacement Filter Pack: This pack includes one 10”x4.5” CTO carbon block filter (FC15B) and one 10”x4.5” anti-scale water filter (FWDS80K) - the official replacements for the iSpring whole house water filtration system WGB21B-DS. Keep your water filtration system at its best with this cost-effective filter set.
Advanced 1st Stage CTO Filter (FC15B): The 10” x 4.5” CTO filter FC15B effectively knocks out cloudiness, bad taste, and odors. It removes up to 99% of chlorine and is highly efficient in eliminating organic compounds like herbicides, and industrial solvents. Enjoy fresher and cleaner water from every faucet in your home.
Highly Effective 2nd Stage Anti-Scale Filter (FWDS80K): The 10” x 4.5” Polyphosphate filter FWDS80K is specifically designed to protect your household appliances and plumbing from scale buildup. It inhibits corrosion on iron, steel, galvanized, copper, and lead pipes by coating their surfaces. Preserve the longevity of your appliances and plumbing with this essential filter.
Preserve Essential Minerals: Please note that this filter pack is NOT designed to reduce Total Dissolved Solids (TDS). It ensures that essential minerals remain in your water, promoting a healthier and more refreshing taste. If you seek a filter that removes TDS, explore our iSpring Reverse Osmosis (RO) systems like RO500, RCC7, RO100, and more.
Backed by iSpring Assurance: Your purchase comes with a 30-day money-back guarantee, extended manufacturer warranty, and lifetime tech support from iSpring in Atlanta, GA. We stand behind our products and are committed to providing you with the best customer experience.
iSpring FC15B-PB 4.5” x 10” Lead, Arsenic, Cadmium, Chlorine Reducing Whole House Water Filter, Fits iSpring WGB21B-CPB Series (FC15B-PB)
Lead Removal: The FC15B-PB filter's media can effectively remove up to 99% of lead from your water, ensuring safer drinking water for your household.
Comprehensive Heavy Metal Filtration: Featuring advanced MetSorb media, our FC15B-PB water filter efficiently removes heavy metals like arsenic (III & V), lead, mercury, cadmium, and more. This superior filtration extends the filter's lifespan, reducing replacement frequency. (Note: This product is independently manufactured by iSpring and is not affiliated with MetSorb.)
Standard Size: Our filter fits standard 10” x 4.5” housings, including brand-name models.
Built to Last: Your filter changing schedule will depend on the contamination level of your source water. We recommend changing your filters every 12 months or after filtering up to 50,000 gallons of water.
Guaranteed Freshness: Each cartridge is individually wrapped to maintain optimal freshness. Please unwrap before use.
Peace of Mind Support: Register online to activate your warranty and enjoy lifetime free tech support from our U.S.-based team. We stand by our products—if you encounter any issues, contact us immediately, and we’ll gladly assist!
Important Note: This filter does not reduce Total Dissolved Solids (TDS) like an RO membrane. If TDS removal is your goal, we recommend exploring our iSpring Reverse Osmosis (RO) systems.
iSpring F2WGB21BM Whole House 4.5"x10" Water Filtration CTO Carbon Block and Iron and Manganese Reducing Water Filter Replacement Cartridge Pack Set (F2WGB21BM)
[Great Compatibility] As the official replacement filter set for iSpring whole house water filtration system WGB21BM, this filter pack consists of one 10"x4.5" CTO carbon block filter(FC15B) and one 10"x4.5" iron and manganese reducing water filter(FM15B). Fits standard 10"x4.5” whole house water filtration systems.
[Highly Activated Carbon Block CTO Filter] Using high quality coconut shell carbon and highly compact fabrication tech, iSpring CTO filter FC15B knocks out cloudiness as well as bad tastes and odors, removes up to 99% of chlorine, and is highly effective on Organic Compounds like herbicides and industrial solvents and other contaminants like trihalomethanes.
[Iron and Manganese Reducing] 2nd stage filter (FM15B) is specially designed for iron & manganese removal, reducing iron (Max 3.0 ppm down to 0.01 ppm) and manganese (Max 1.0 ppm down to 0.01 ppm). Together with 1st stage carbon block filter FC15B, this filter meets your water filtration needs to protect your family and household appliances from iron, manganese, and more.
[Easy Filter Change] Individually sealed for freshness. Depending on source water quality, replace the filters every 6 months to achieve optimal performance. Please refer to our manual and our helpful YouTube videos for filter change tips if needed.
[TDS Note] The system this filter pack works for is installed at the main water supply line in order to treat all the water in your home. Unlike an RO system, this system will NOT reduce Total Dissolved Solids (TDS) and instead keeps healthy minerals in your water. If you are interested in a filter that removes TDS, please consider our iSpring Reverse Osmosis (RO) systems such as RO500, RCC7, RO100 and more.
[Peace-of-mind Customer Support] Your risk-free shopping experience is backed by a 30-day money-back guarantee, extended manufacturer warranty, and lifetime tech support from iSpring in Atlanta, GA.
iSpring F2WGB21BKS Whole House 4.5"x10" Water Filtration CTO Carbon Block and GAC+KDF Water Filter Replacement Cartridge Pack Set for WGB21B-KS (F2WGB21BKS)
Economical Replacement Filter Pack: This pack includes one 10”x4.5” GAC+KDF water filter (FG15B-KS) and one 10”x4.5” CTO carbon block filter (FC15B) - the official replacements for the iSpring whole house water filtration system WGB21B-KS. Enjoy continuous access to clean and healthy water with this cost-effective filter set.
Advanced 1st Stage Filter (FG15B-KS): The 10” x 4.5” compound filter is designed to remove a wide range of contaminants, including chlorine, lead, mercury, hydrogen sulfide, THMs, chloramines, herbicides, odors, and other impurities. Made with high-quality coconut shell carbon and advanced fabrication technology, it ensures superior filtration performance.
Highly Effective 2nd Stage Filter (FC15B): The 10” x 4.5” CTO carbon block filter knocks out cloudiness, bad tastes, and odors, while effectively removing up to 99% of chlorine. It is also highly efficient in eliminating herbicides and industrial solvents.
Individually Sealed for Freshness: Each filter is individually sealed to maintain maximum freshness and ensure top-notch performance. Replace the filters every 8-12 months, depending on the source water quality, to achieve optimal filtration results. For easy filter change tips, refer to our manual and helpful YouTube videos.
Preserve Essential Minerals: Please note that this filter pack is NOT designed to reduce Total Dissolved Solids (TDS). It allows essential minerals to remain in your water, promoting better taste and overall well-being. If you prefer a filter that removes TDS, consider exploring our iSpring Reverse Osmosis (RO) systems like RO500, RCC7, RO100, and more.
iSpring PFAS & Heavy Metals Whole House Water Filter System, SGS-Tested to Reduce 99% PFAS, 2-Stage Filtration Removes Lead, Heavy Metals, Chlorine, Sediment & Odor, 1” Inlet/Outlet Model: WGB21B-PFKS (WGB21B-PFKS)
Whole Home Heavy Metal Filtration: This whole house water filter system provides powerful two-stage protection for your home. Stage 1 uses high-performance KDF and granular activated carbon (GAC) to reduce chlorine, chloramine, lead, mercury, hydrogen sulfide (H₂S), radon, pesticides, herbicides, industrial chemicals, and other heavy metals. It also removes dirt, rust, sand, and particles as small as 5 microns—perfect for both city water and well water filter system needs.
High-Efficiency PFAS Filtration: Stage 2 features SGS-tested media for advanced removal of up to 99% of PFAS, including PFOA and PFOS. This PFAS water filter offers strong protection against “forever chemicals” and other emerging contaminants, delivering clean, safe water from every tap in your whole home water filtration system.
Compact & Long-Lasting Design: The space-saving design of this whole house water filtration system fits apartments, small homes, or vacation houses. Each filter lasts up to 50,000 gallons or 12 months, ensuring reliable performance for your whole house well water filter system or city supply.
Easy DIY Installation & Maintenance: With standard 1” NPT ports, this water filter whole house system is easy to install in most home plumbing setups. Step-by-step guides and video instructions make DIY setup and quick filter changes simple and hassle-free.
Healthy Minerals Retained: This whole home water filtering system removes harmful contaminants while preserving essential minerals in your water. For TDS-free water, pair with an iSpring reverse osmosis water filter system for home.
Trusted Quality & U.S.-Based Support: Each cartridge is individually sealed to guarantee maximum freshness. Enjoy peace of mind with a 1-year warranty and lifetime U.S.-based technical support for your whole house water filters and well water filter system.
iSpring PFAS Whole House Water Filter System,SGS-Tested to Remove up to 99% PFAS,2-Stage Filtration Reduces Sediment, Chlorine, Chemical, Taste & Odor, 10-Inch Filters,1" Inlet/Outlet Model: WGB21B-PF (WGB21B-PF)
PFAS Removal & Whole House Filtration: Upgrade your home’s water with this iSpring whole house water filter system. The SGS-tested 2-stage Whole house water filter system removes up to 99% of PFAS, PFOA, and PFOS—those stubborn “forever chemicals” found in city or well water—while also filtering out sediment, rust, sand, chlorine, bad taste, odor, and other contaminants. Enjoy pure water from every tap with this trusted whole house water filter for PFAS.
Compact Size, Lasting Performance: Perfect for apartments, smaller homes, or vacation houses, this 10” x 4.5” whole house water filter fits tight spaces but delivers powerful performance. Designed to last up to 50,000 gallons or 12 months, it’s a dependable choice for any whole home water filtration system.
Easy Installation & Maintenance: Featuring standard 1” NPT inlet/outlet ports, this PFAS whole house water filter system is quick to install on most household plumbing. Step-by-step guides and video instructions make setup hassle-free. Filter changes are fast and clean, ensuring your whole house water filter system runs smoothly.
Healthy Minerals Retained: The PFAS whole house water filtration system removes harmful chemicals but keeps healthy minerals in your water. Need TDS-free water? Simply pair with an iSpring RO water filter system for house.
Guaranteed Quality & Service : Every filter cartridge is individually sealed for freshness and quality. Enjoy peace of mind with a 1-year warranty and lifetime U.S.-based tech support. Have questions about your whole house water filters? Our expert team is always ready to help.