iSpring
![]()
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 F3WGB31BKSNC Whole House Water Filter Replacement Pack, SGS-Tested to Remove up to 94.4% of Chloramine, Reduces Heavy Metals, Lead, Chlorine, Sediment, 10" x 4.5" Filters, Fits WGB31B-KSNC (F3WGB31BKSNC)
Reliable 3-Stage Whole House Water Filter: This whole house water filter repleacement set includes a 10" sediment filter, a GAC KDF media filter that targets lead, mercury, hydrogen sulfide, pesticides, and other common contaminants, and an advanced catalytic carbon block that reduces chloramine, chlorine, VOCs, and unpleasant odors - providing cleaner, better-tasting water across your entire home.
Powerful Heavy Metal Reduction: The FG15B-KS water filter in the second stage uses a GAC KDF media to reduce lead, mercury, hydrogen sulfide, pesticides, herbicides, and other common contaminants found in both city and well water.
SGS-Tested Chloramine Removal: The third-stage FC15B-NC filter uses premium catalytic carbon to efficiently reduce chloramine, chlorine, VOCs, and unpleasant tastes & odors. Independently tested by SGS, the filter achieved up to 94.4% chloramine removal according to NSF/ANSI 42 standards, providing cleaner and safer water for your entire home.
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.
Durable & Low Maintenance – Built for long-term performance, this compact whole home water filter set supports flow rates up to 15 GPM and treats up to 50,000 gallons of water. Every cartridge is individually wrapped to ensure freshness and peak performance. Be sure to unwrap before use.
Peace of Mind Guaranteed – Supported by lifetime technical support from our U.S.-based customer service team. Whether you're replacing filters or maintaining your whole-house system, we're here to help—before and after your purchase.
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.
iSpring GS3 Lead-Free Reverse Osmosis Water Filter Drinking Water Faucet, Non-Air Gap RO Faucet, Chrome Finish (GS3)
Lead-free non-air gap drinking water faucet for Reverse Osmosis Systems and undersink water filter systems. Built from solid brass, this 9.75-inch RO faucet delivers clean and fresh water to you and your family.
Your choice for drinking water faucet if you prefer the look of a traditional RO faucet. Timeless coke-shaped style with high grade chrome finish makes it easy to match other fixtures in your kitchen.
Swivels 360-degree for ease of use. Featured durable ¼ turn wheel-shaped handle offers smooth operation.
Requires only a ½” drilled hole for easy installation; can accommodate larger pre-drilled holes with its cover plate(OD: 2.1”). One ¼” and one ¼” to ⅜” tube push to connect quick fitting included.
Backed by a 30-day money-back guarantee, 3-year limited manufacturer warranty, and lifetime tech support from iSpring Water Systems at (678)261-7611 in Atlanta, GA.
iSpring F3WGB32BKSNC Chloramine & Heavy Metals Removal Whole House Water Filter Replacement Pack, SGS-Tested, Reduces Lead, Chlorine, Sediment and up to 94.4% of Chloramine, 20" x 4.5" Filters, Fits WGB32B-KSNC (F3WGB32BKSNC)
Reliable 3-Stage Whole House Water Filter: This whole house water filter repleacement set includes a sediment filter (FP25B), a GAC KDF media filter (FG25B-KS) that targets lead, mercury, hydrogen sulfide, pesticides, and other common contaminants, and an advanced catalytic carbon block (FC25B-NC) that reduces chloramine, chlorine, VOCs, and unpleasant odors - providing cleaner, better-tasting water across your entire home.
Heavy Metal Defense: The FG25B-KS filter combines high-performance KDF and granular activated carbon (GAC) media to reduce chlorine, lead, mercury, hydrogen sulfide (H₂S), radon, and other harmful contaminants. A powerful layer of protection in your whole house water filter system for clean, healthy water at every tap.
SGS-Tested Chloramine Removal: The third-stage FC25B-NC filter utilizes premium catalytic carbon media that has been tested by SGS according to NSF/ANSI 42 standards, proven to remove up to 94.4% of chloramine. This advanced media efficiently converts chloramine into harmless byproducts while also reducing chlorine, VOCs, and unpleasant tastes and odors, delivering cleaner, fresher-tasting water throughout your entire home.
Built to Last: Designed for durability, this whole house water filter pack delivers reliable performance for up to 100,000 gallons or 12 months, depending on water usage and quality. It is a long-lasting solution for those seeking dependable whole home water filtration.
Lifetime U.S. Support – Our friendly customer service team is always ready to guide you through filter replacement and whole house system maintenance.
Beneficial Minerals Intact – Filters your water while preserving essential minerals without lowering TDS. For complete removal of total dissolved solids, consider iSpring Reverse Osmosis systems.
iSpring FC15 NSF/ANSI 58 Certified Standard 10 inch CTO Carbon Block Water Filter Cartridge Replacement, 5 Microns (FC15)
Reduces fine sediment and chlorine taste and odor in residential and commercial drinking water
Rated at 5 microns
Bonded Pac media with polyolefin pre-filter and polyethylene netting
Initial pressure drop of 3.4 psi at a flow rate of 1 gpm
Water temperature range of 41 to 100°F (5°C to 38°C)
NSF/ANSI 58 Certified: Independently tested and certified to meet NSF/ANSI 58 standards, ensuring reliable removal of harmful contaminants for safe, high-quality drinking water.
iSpring FG15 NSF/ANSI 58 Certified GAC Granular Activated Carbon 2.5"x10" Water Filter Replacement, 2.5" x 10" (FG15)
Individually wrapped
5 micron rating
Made from coconut shell carbon
Fits 10 inch standard filter housings
Removes chlorine, bad odor and taste
NSF/ANSI 58 Certified: Independently tested and certified to meet NSF/ANSI 58 standards, ensuring reliable removal of harmful contaminants for safe, high-quality drinking water.
iSpring FG25 20” x 2.5” Water Filter Replacement Cartridges - Granular Activated Carbon - Fits RCB3P RO System and other 20” x 2.5” Systems (FG25)
Protect Your Family and Household Appliance from Chlorine and More: Say goodbye to smelly, bad tasting water! The FG25 granular activated carbon filter is specially designed to remove dust, particles, rust, and odors and tastes caused by various contaminants, especially chlorine from your source water.
Standard Size: Our filter set fits standard 20” x 2.5” housings, including brand name models.
Our FG25 granular activated carbon filters are made of coconut shell carbon to increase filtration efficiency and extend filter life. They are tested by an independent third-party to meet NSF/ANSI standards. The filters have a capacity of 30,000 gallons of water, enough to supply a family of four with clean water for half a year. Water flow: up to 12 GPM.
Peace of Mind Customer Service: Register online to activate your extended manufacturer warranty and life-time free tech support from U.S. local support team. We stand behind our products and if you encounter any problems with any of our products please reach out to us immediately. We are happy to help!
Please Note: The cartridges are individually wrapped to ensure freshness. Please unwrap the cartridges before use. Unlike an RO membrane, the filters don’t reduce Total Dissolved Solids (TDS). If you are interested in a filter that removes TDS, consider our iSpring Reverse Osmosis (RO) systems.
iSpring FC25 High Capacity 20” x 2.5” Water Filter Replacement Cartridges - CTO Carbon Block - Fits WCB32C, WCB32O, and RCB3P (FC25)
Protect Your Family and Household Appliance from Chlorine and More: Say goodbye to smelly, bad tasting water! The FC25 carbon block filter is specially designed to remove up to 99% of chlorine from water as well as various other contaminants that cause unpleasant odors and tastes.
Standard Size: Our filter set fits standard 20” x 2.5” housings, including brand name models.
Our FC25 CTO Carbon Block filters are made of coconut shell carbon to increase filtration efficiency and extend filter life. They are tested by an independent third-party to meet NSF/ANSI standards. The filters have a capacity of 30,000 gallons of water, enough to supply a family of four with clean water for half a year. Water flow: up to 12 GPM.
Peace of Mind Customer Service: Register online to activate your extended manufacturer warranty and life-time free tech support from U.S. local support team. We stand behind our products and if you encounter any problems with any of our products please reach out to us immediately. We are happy to help!
Please Note: The cartridges are individually wrapped to ensure freshness. Please unwrap the cartridges before use. Unlike an RO membrane, the filters don’t reduce Total Dissolved Solids (TDS). If you are interested in a filter that removes TDS, consider our iSpring Reverse Osmosis (RO) systems.
iSpring FP11X50-N, NSF Certified, 1 Micron 10"x2.5" Multi-layer Sediment Water Filter Replacement Cartridges, 50-Pack (FP11X50-N)
Powerful First-Line Protection – Engineered to capture sediment, dust, sand, silt, rust, and large particles, these FP series filters serve as an effective first stage of a water filtration system. They help reduce buildup and extend the life of downstream filters. This filter can also be used for pool and hottub.
Standard 10” x 2.5” Fit – Compatible with most 10” x 2.5” filter housings from various brands, these filters offer a universal fit for residential and light commercial systems.
Consistent Performance – Constructed from high-quality polypropylene, these filters provide fine filtration down to 1 microns. Each cartridge supports clean water flow for up to 6 months for a typical family, with minimal impact on pressure.
U.S.-Based Customer Support – Register your product online to enjoy extended warranty and complimentary tech support from our dedicated U.S. team. We’re here to help with any concerns to ensure your satisfaction.
Individually Wrapped for Freshness – Each cartridge is sealed to preserve quality until use. Note: These filters do not reduce TDS but instead retain healthy minerals in your water. If you need TDS reduction, check out our iSpring Reverse Osmosis systems.
iSpring FP25 20” x 2.5” Water Filter Replacement Cartridges - Fine Sediment Filter - 5 Micron - Fits Standard 20” x 2.5” Water Filtration Systems (FP25)
Protect Your Family and Household Appliance from Sediments: The FP25 sediment filters are specially designed to remove sediments, dust, sand, large particles, silt, dirt, and rust from water. They are usually used as the first stage of a water filtration system to prevent the filters that follow from getting clogged too soon. This filter can also be used for pool and hottub.
Standard Size: Our filter fits standard 20” x 2.5” housings, including brand name models.
The FP25 polypropylene sediment filter is able to achieve filtration down to 5 microns. The filters are tested by an independent third-party to meet NSF/ANSI standards. They have a capacity of 30,000 gallons of water, enough to supply a family of four with clean water for half a year (depending on your water quality). Water flow: up to 12 GPM.
Peace of Mind Customer Service: Register online to activate your extended manufacturer warranty and life-time free tech support from U.S. local support team. We stand behind our products and if you encounter any problems with any of our products please reach out to us immediately. We are happy to help!
Please Note: The cartridges are individually wrapped to ensure freshness. Please unwrap the cartridges before use. Unlike an RO membrane, the filters don’t reduce Total Dissolved Solids (TDS). If you are interested in a filter that removes TDS, consider our iSpring Reverse Osmosis (RO) systems.
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 AHP1 High pressure switch for Reverse Osmosis Water Filter with Booster Pump (AHP1)
Compatible with most Reverse Osmosis systems with Booster Pump in the market.
To be installed to shut off Booster Pump when the tank is full.
1/4 inch Jaco fitting.
iSpring AFR420K Flow Restrictor, White (AFR420K)
Compatible with most reverse osmosis systems of 75 - 100 GPD (including brand names) in the market
To be installed on the drain line
Recommended for RO systems of 75GPD or 100GPD, or for customers whose source water TDS is more than 200 ppm
Features 1/4” quick fitting
iSpring FC25B-NC 20" x 4.5" Whole House Chloramine Removal Water Filter, Up to 94.4% Chloramine Reduction, Reduces Chlorine, Odors & Sediment, with SGS-Tested Catalytic Carbon Media (FC25B-NC)
SGS-Tested Chloramine Removal: The FC25B-NC filter utilizes premium catalytic carbon media that has been tested by SGS according to NSF/ANSI 42 standards, proven to remove up to 94.4% of chloramine. This advanced media efficiently converts chloramine into harmless byproducts while also reducing chlorine, VOCs, and unpleasant tastes and odors, delivering cleaner, fresher-tasting water throughout your entire home.
Built to Last: Designed for durability, this whole house water filter delivers reliable performance for up to 100,000 gallons or 12 months, depending on water usage and quality. It is a long-lasting solution for those seeking dependable whole home water filtration.
Freshness Guaranteed – Every water filter cartridge comes individually sealed at the factory to ensure maximum cleanliness and peak performance. Simply unwrap and install.
Beneficial Minerals Intact – These water filter whole house filters your water while preserving essential minerals without lowering TDS. For complete removal of total dissolved solids, consider iSpring reverse osmosis systems.
Peace of Mind Guaranteed – Supported by lifetime technical support from our U.S.-based customer service team. We’re here to assist you every step of the way as you replace filters and keep your whole-house system performing at its best.
iSpring FP110X50 10 Micron Box of 50 Standard 10"x2.5" Sediment Water Filter Replacement, 50-Pack (FP110X50)
Made of 100% Melt-Blown Polypropylene, multi-layer filtration 2.5" DIA x 10" Length 10 Micron rated Fits 10" filter housings Tested by independent third-party to meet NSF/ANSI standard. This filter can also be used for pool and hottub.
iSpring TDS3 3-Button Digital Water Quality Test Meter with Temperature Test Function (TDS3)
Water Quality Testing Must-Have: The iSpring TDS meter is a great water
quality test tool for drinking water, water filtration and purification
systems such as RO systems or DI systems, aquariums, hydroponics (test
nutrients), pools and spas, commercial and industrial applications and
more. The TDS meter is handy for checking your tap water quality and
knowing when to change a filter.
Multi-Functional TDS Meter: The TDS reading
will be displayed on the LED screen in ppm (parts per million). TEMP
button: Display temperatures. HOLD button: Lock and record readings.
Auto-off Function: Shuts off automatically after a few minutes of
inactivity.
Durable and Convenient: Sturdy plastic housing, light weight(1.76 oz),
and included carrying case with belt clip for portability to any
indoor or outdoor water testing site. A multifunctional TDS pen
to know TDS and temperatures of water in any home, workplace, lab, or
industrial environment.
Value Package: iSpring TDS meter x 1, Portable Leather Carrying Case
with Belt Clip x 1, User Manual with TDS Chart x 1.
Peace-of-mind Customer Service: Backed by a risk-free 30-day money-back and
extended manufacturer upon registration at iSpring. Lifetime CS and tech
support(678-261-7611) from Atlanta, GA, USA. Please contact us if you have
any questions or concerns. We're here to help!
iSpring AFA2K Tube To Thread Adapter, 1/4 IN Quick-fitting by 1/4 IN NPT Female Thread (AFA2K)
Connections: 1/4" Push-in Quick Connect x 1/4" NPT female thread Solid construction EPDM O-ring FDA approved material Tested by independent third-party to meet NSF/ANSI Standard 51 & 61 Suitable for water & food applications NOT suitable for compressed air or vacuum applications
iSpring ORF O-Ring for 10 inch Water Filter Housing Oring (ORF)
Fit 10” Water Filter Housings. For the pre-filter housings for RO systems, countertop water filters.
O-ring replacements for 10” water filter housings
Approximate O.D.: 3 1/2"
iSpring US31 Water Filtration System for Drinking, NSF Certified 3-Stage Water Filters, Tankless, High Capacity Water Filter System with Brushed Nickel Faucet (US31)
[Classic Drinking Filter]: The water undergoes a three-stage purification process: PP sediment filtration, GAC carbon filter and a unique CTO filtration in the 3rd layer. This system efficiently removes common drinking water sediments such as dust, sand, particles, dirt, and rust. Additionally, it effectively eliminates heavy metals, harmful chemicals, Chloramine, cloudiness, colors, chlorine taste, and odor. It's important to note that this under sink water filtration system DOES NOT lower TDS value but preserves the healthy minerals in your water. Enjoy pure, great-tasting water with essential minerals intact.
[Fresh Healthy Water Supplier]: The on-demand fast flow rate of the iSpring US31 allows it to meet the widest possible range of needs in your home. Up to 20x more effective than the common water pitcher dispenser. Flow Rate: Up to 1GPM depending on source water pressure. Maxim Pressure: 90psi. It washes fresh produce like fruit and vegetables, brings health protection, can provide your entire family with delicious, clean water straight from your tap.
[Excellent Quality and Design]: Features beautiful European-designed brushed nickel all-metal faucet and clear see-through 1st stage housing. Clear see-through 1st stage housing makes filter inspection a snap. Manufactured to comply strictly with FDA standards and tested by independent third party against NSF/ANSI standards (42, 53, 61) for water quality, material safety and structural integrity.
[Easy to Install and Maintain]: Designed for hassle-free installation and maintenance, the system includes a high-capacity sediment filter, GAC filter, and CTO carbon filter. The sediment filter protects and extends the life of your system, while the GAC and carbon filters efficiently remove harmful contaminants. Filters should be replaced every 6 to 12 months, depending on water quality.
[TDS Note and Customer Services]: This under sink water filter will not reduce the TDS of the incoming water. Instead, it keeps the healthy minerals in your water. If you are interested in a filter that removes TDS, please consider a iSpring reverse osmosis system.Backed by a 1-year Manufacturer with lifetime support from Atlanta, GA USA. For any issue or concern, please don't hesitate to contact us.
iSpring ORM O-Ring for Reverse Osmosis Membrane Housing (ORM)
The O-ring is installed on both the lip of the RO membrane housing and inside the housing cap.
Out of Stock
$8.99