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iSpring WGB31B-KSNC Whole House Water Filter System, SGS-Tested to Remove up to 94.4% of Chloramine, 3-Stage Filtration Reduces Heavy Metals, Lead, Chlorine, Sediment, VOC, 10" x 4.5" Filters, 1” Inlet/Outlet (WGB31B-KSNC)
Reliable 3-Stage Whole House Filtration: The whole house water filter system WGB31B-KSNC features a robust 3-stage setup including a 10” polypropylene sediment filter, a GAC + KDF media filter that targets lead, mercury, hydrogen sulfide, pesticides, and other common contaminants, and an advanced FC15B-NC 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.
Advanced Catalytic Carbon 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.
DIY-Friendly Setup: 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.
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.
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.
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-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 RCS10T Reverse Osmosis Water Filter, 5 Stage Tankless RO Water Filtration System for Commercial & Residential, High-Flow 1000 GPD, 2.5:1 Pure to Drain Ratio (RCS10T )
1000 GPD High-Flow Reverse Osmosis System: Engineered for higher daily water demand, this reverse osmosis system delivers up to 1000 gallons of purified water per day, providing a consistent and reliable supply for residential kitchens, offices, and light commercial applications.
Advanced 5-stage Filtration: This 5-stage RO filtration system is designed to reduce up to 99% of over 1,000 common contaminants, including chlorine, fluoride, lead, arsenic, asbestos, sodium, calcium, sand, and unpleasant odors. Featuring a high-efficiency RO membrane with up to 99% TDS rejection, it delivers clean, great-tasting water for everyday drinking and cooking.
High-efficiency Booster Pump: Equipped with a high-efficiency booster pump, the system helps improve performance in low water pressure conditions by increasing inlet pressure. This allows the RO membrane to operate at optimal efficiency, maximizing purified water production and system reliability.
Easy DIY Installation with Reliable Customer Support: The RO water system features a DIY-friendly design with quick-fitting connections, a clear manual, and step-by-step videos for a hassle-free setup. Backed by a 30-day money-back guarantee, 1-year manufacturer warranty, and extended warranty upon registration. Lifetime customer service and tech support from iSpring in Atlanta, GA.
Convenient Filter Replacement: The replacement filters for stages 1-5 are FP15 (up to 6 months), FG15 (up to 12 months), FC15 (up to 12 months), MS10 (up to 36 months), and FT15 (up to 12 months), respectively.
iSpring F15-200 Upgraded 200 GPD 2-Year Replacement Filter Pack for RCC2 5-Stage Reverse Osmosis System, 15-Piece (F15-200)
Individually wrapped genuine 2-year high capacity filter replacement cartridge pack for RCC2 5-stage RO system
200 GPD reverse osmosis membrane for superior performance
Package includes 4x sediment filters (Model #FP15), 4x granular activated carbon filters (Model #FG15), 4x carbon block filters (Model #FC15), 1x 200 GPD RO membrane (Model #MC2), and 2x taste-polishing filters (Model #FT15).
iSpring F19K200 Upgraded 200 GPD 2-Year Replacement Filter Pack for RCC2AK 6-Stage Reverse Osmosis System with Alkaline Mineral Filter, 19-Piece (F19K200)
Individually wrapped genuine 2-year high capacity filter replacement cartridge pack for RCC2AK 6-stage RO system
200 GPD reverse osmosis membrane for superior performance
Alkaline filter restores essential minerals like calcium, magnesium, and potassium, balancing pH for drinking water
Includes 4 sediment filters (Model #FP15), 4 granular activated carbon filters (Model #FG15), 4 carbon block filters (Model #FC15), 1x 200 GPD RO membrane (Model #MC2), 2 taste-polishing filters (Model #FT15), and 4 alkaline mineral filters (Model #FA15).
iSpring F21KU200 Upgraded 200 GPD 2-Year Replacement Filter Pack for RCC2AK-UV 7-Stage Reverse Osmosis System with Alkaline Mineral & UV, 21-Piece (F21KU200)
Individually wrapped genuine 2-year high capacity filter replacement cartridge pack for the RCC2AK-UV 7-stage RO system
200 GPD reverse osmosis membrane for superior performance
Alkaline filter restores essential minerals like calcium, magnesium, and potassium, balancing pH for drinking water
11W UV lamp (Model #UVB11), compatible with iSpring UVF11A/UVF11B, rated at 1 GPM flow, with up to 8,000 hours of service life
Includes 4x sediment filters (Model #FP15), 4x granular activated carbon filters (Model #FG15), 4x carbon block filters (Model #FC15), 1x 200 GPD RO membrane (Model #MC2), 2x taste-polishing filters (Model #FT15), 4 alkaline mineral filters (Model #FA15), and 2x ultraviolet light bulbs (Model #UVB11).
iSpring F22-200 Upgraded 200 GPD 3-Year Replacement Filter Pack for RCC2 5-Stage Reverse Osmosis System, 22-Piece (F22-200)
Individually wrapped genuine 3-year high capacity filter replacement cartridge pack for RCC2 5-stage RO system
200 GPD reverse osmosis membrane for superior performance
Package includes 6x sediment filters (Model #FP15), 6x granular activated carbon filters (Model #FG15), 6x carbon block filters (Model #FC15), 1x 200 GPD RO membrane (Model #MC2), and 3x taste-polishing filters (Model #FT15).
iSpring F28K200 Upgraded 200 GPD 3-Year Replacement Filter Pack for RCC2AK 6-Stage Reverse Osmosis System with Alkaline Mineral Filter, 28-Piece (F28K200)
Individually wrapped genuine 3-year high capacity filter replacement cartridge pack for RCC2AK 6-stage RO system
200 GPD reverse osmosis membrane for superior performance
Alkaline filter restores essential minerals like calcium, magnesium, and potassium, balancing pH for drinking water
Includes 6 sediment filters (Model #FP15), 6 granular activated carbon filters (Model #FG15), 6 carbon block filters (Model #FC15), 1x 200 GPD RO membrane (Model #MC2), 3 post-carbon filters (Model #FT15), and 6 alkaline mineral filters (Model #FA15).
iSpring RO800G Tankless RO System, Removes up to 99% Chlorine, PFAS, Fluoride, Lead, Arsenic, and more, 800 GPD, 2.5:1 Pure to Drain, w/ Brushed Nickel Faucet and F4-RO800 3 Years Replacement Filter Pack (RO800G+F4RO800)
Next-Generation 800 GPD RO System: The iSpring RO800G tankless reverse osmosis water filtration system delivers up to 0.6 GPM of purified water, ideal for households, offices, and coffee shops. Designed for high-demand applications, it provides consistent water pressure and stable performance.
Removes Chlorine, Chloramine & Heavy Metals: The PP+CTO composite and 800 GPD RO membrane filters effectively reduce sediment, rust, sand, chlorine, chloramine, fluoride, lead, arsenic, and TDS down to 0.0001 microns, providing safe and great-tasting water.
Tankless Design with Water-Saving Efficiency: Enjoy instant access to filtered water with no storage tank required. The compact under-sink design saves space while its 2.5:1 pure-to-drain ratio uses significantly less water than traditional RO systems.
Smart Monitoring & Easy Maintenance: Features automatic pre-flush, real-time filter life reminders, and quick twist-and-lock replacements. Filter changes require no tools or plumber and can be done without shutting off the water supply.
Long-Lasting Replacement Pack: The F4RO800 filter pack includes 3 FPPC composite filters (12-month lifespan each) and 1 MRO800 RO membrane (up to 36 months), providing up to 3 years of dependable filtration for the RO800G system.
Premium Build & Support: Made from food-grade, BPA-free materials and paired with a lead-free faucet. Backed by a 1-year limited warranty upon registration and lifetime customer support from iSpring’s Georgia, USA-based service team.
iSpring RO600BN Tankless Reverse Osmosis Water System, Removes up to 99% Contaminants, Including Chlorine, Fluoride, Lead, PFAS and more, 600 GPD Fast Flow, w/ F3-RO600 2-Year Replacement Filter Set (RO600BNF3RO600)
Comprehensive Contaminant Reduction: The RO600BN removes up to 99% of over 1,000 contaminants including chlorine, lead, PFAS, fluoride and sediment, improving taste and safety.
High Capacity Performance: The RO600BN produces up to 600 gallons per day and delivers up to 0.4 GPM steady flow for faster dispensing and reduced wait time, suitable for high-demand households.
Efficient Water Use: Advanced tankless design with a 2.5:1 pure water to drain ratio significantly lowers wastewater compared with traditional RO systems while preserving filtration effectiveness.
User-Friendly Maintenance and Controls: Built-in LED filter life reminder shows white for normal, blinking white for low life, and red when replacement is required. Twist-and-lock filters enable tool-free replacement and the system features an automatic selfclean after 24 hours of non-use.
Replacement Set Composition: The F3-RO600 replacement filter set contains two FCF600 composite prefilters and one MRO600 RO membrane, provided as a complete 2-year supply when filters are replaced per iSpring recommended schedule.
Easy Filter Care and Performance Preservation: FCF600 prefilters reduce sediment and chlorine to protect the RO membrane, while the MRO600 membrane maintains high TDS rejection and fast flow; combined the set helps sustain peak system performance.
iSpring WGB32B-KS Whole House Water Filter System, Removes Chlorine, Lead, Mercury, Hydrogen Sulfide, and Heavy Metals up to 15 GPM, 3-Stage Filtration, w/ F3WGB32BKS Replacement Filter Set (WGB32BKS-F3)
Comprehensive Filtration: The 3-stage system includes a 5-micron sediment removal filter, a GAC and KDF compound filter, and a CTO carbon block filter, effectively reducing sediment, chlorine, lead, mercury, hydrogen sulfide, heavy metals, and pesticides.
High Flow and Capacity: Supports up to 15 gallons per minute (GPM) water flow, with each cartridge providing up to 100,000 gallons of clean water—sufficient for a family of four for one year.
Durable Build Quality: 20” x 4.5” filter cartridges made with premium polypropylene and coconut shell carbon, tested to meet NSF/ANSI standards for safety and performance.
Easy Installation: Comes with 1” NPT inlet/outlet connections, detailed manual, and video guides for DIY setup and maintenance, ensuring consistent whole-house filtration.
Reliable Replacement Set: Includes one sediment removal, one GAC+KDF, and one CTO carbon block cartridge compatible with the WGB32B-KS system, individually wrapped for freshness.
Long-Term Support: Backed by iSpring’s U.S.-based customer service in Atlanta, GA, providing professional assistance for system setup, filter replacement, and post-sale support.
iSpring WGB32B-PB 3-Stage Whole House Water Filter System, Removes up to 99% Lead, Chlorine, and Odor, High Capacity up to 150,000 Gallons, 15 GPM Flow, w/ F3WGB32BPB Replacement Filter Pack (WGB32B-PBF3)
Lead-Focused Whole House System: The WGB32B-PB unit is engineered to reduce lead via its third-stage FCRC25B cartridge, rated for up to 150,000 gallons of filtration at 100 ppb lead levels.
High Flow Rate & Large-Capacity Cartridges: Supports up to 15 gallons per minute flow, using standard 20″ × 4.5″ filter cartridges, 1″ NPT inlet/outlet.
Three-Stage Filtration for Sediment, Carbon & Lead: Stage 1 removes down to 5-micron sediment; stage 2 uses coconut shell carbon block for chlorine/taste/odor removal; stage 3 targets lead.
Retains Beneficial Minerals & No Waste Water: Unlike RO systems, the WGB32B-PB does not reduce TDS and does not waste water.
Replacement Pack for Easy Maintenance: The F3WGB32BPB set includes three cartridges (sediment, carbon block, lead-reducing) sized 20″ × 4.5″ to fit WGB32B-PB housings.
Long-Term Support: Backed by iSpring’s U.S.-based customer service in Atlanta, GA, providing professional assistance for system setup, filter replacement, and post-sale support.
iSpring WGB32B-MKS 3-Stage Whole House Water Filtration System, Removes Iron, Manganese, Hydrogen Sulfide, Chlorine, and Sediment, 15 GPM Flow, w/ F3WGB32BMKS Replacement Filter Pack (WGB32B-MKSF3)
Advanced 3-Stage Filtration: The WGB32B-MKS system employs three precision-engineered filters for comprehensive protection. The FP25B sediment filter captures particles down to 5 microns, the FG25B-KS compound filter targets chlorine, lead, mercury, hydrogen sulfide, and heavy metals, while the FM25B iron filter effectively reduces iron up to 3.0 ppm and manganese up to 1.0 ppm.
High Flow and Long Lifespan: Designed for high-capacity households, this system maintains up to 15 GPM flow with minimal pressure drop. Depending on water quality and usage, each filter set provides a family of four with clean water for up to a year.
DIY-Friendly Installation: Features 1” NPT inlet/outlet connections and standard 20” x 4.5” filter cartridges for easy setup. Includes a detailed manual and access to iSpring’s instructional YouTube videos for guided installation.
Mineral Retention Design: Unlike reverse osmosis systems, the WGB32B-MKS preserves essential minerals (TDS) while removing harmful contaminants, ensuring water that is both safe and naturally balanced.
Complete Replacement Pack: The F3WGB32BMKS filter pack includes FP25B, FG25B-KS, and FM25B cartridges. Each filter is individually wrapped to maintain freshness, ensuring optimal performance upon installation.
Consistent Performance & Support: Replacement filters sustain up to 15 GPM flow and year-long service life under typical use. Supported by iSpring’s Atlanta, GA customer service team, offering expert guidance and post-purchase technical assistance.
LittleWell 0404SEX2 1/4" Quick Fitting Stem Elbow, 0404SEX2, Pack of 2 (0404SEX2)
1/4" Stem, fits 1/4" Quick fitting
1/4" Quick Connect fitting, fits 1/4" tubing used on most RO system
LittleWell 0404STX2 1/4" Quick Fitting x 2, 1/4" Stem Quick Fitting Stem TEE Fitting, 0404STX2, 2 Pack (0404STX2)
1/4" Quick Connect Fitting x 2
1/4" Stem x 1
Tube OD 1/4"
iSpring F3CTO 10-inch Standard Replacement Filter Set Cartridges for RO and 3-Stage Water Filtration Systems Sediment, 2 x Carbon Block Filters (F3CTO)
Fits 10" standard filter housings. Fits iSpring CW31System. Compatible to most RO systems, includes Watts Premier, Flowmatic, PuROLine, Crystal Quest, Apec, and etc.
Individually wrapped
Pack of 3 replacement water filters. 1x PP sediment filter, 2x Carbon block filter
6-month supply of replacement filters for water filter systems
iSpring F3 NSF/ANSI 58 Certified 10"x2.5" Standard Replacement Prefilter Cartridges for Reverse Osmosis and 3-Stage Water Filtration Systems, Pre-filter (F3)
iSpring 6-month replacement prefilter filter pack for standard 5-stage reverse osmosis systems, tested by independent third-party to meet NSF/ANSI standard
Fits iSpring 5-stage, 6-stage ,and 7-stage RO systems. Also compatible with most industry standard sized 10-inch filter housings
1st stage - 5 micron polypropylene sediment filter removes dust, silt, rust and other particles from the source water
2nd stage - 5 micron granular activated carbon filter gets rid of unpleasant chlorine, tastes and odors
3rd stage - 5 micron carbon block filter removes any residual chlorine.
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 FC25B High Capacity 20” x 4.5” Water Filter Replacement Cartridge - Carbon Block - Fits Standard 20” x 4.5” Whole House Water Filter Systems (FC25B)
Protect Your Family and Household Appliance from Chlorine and More: Say goodbye to smelly, bad tasting water! The FC25B carbon block filter is specially designed to remove up to 99% of chlorine from water as well as taste and odor compounds.
Standard Size: Our filter set fits standard 20” x 4.5” housings, including brand name models.
Our FC25B CTO Carbon Block filters are made of coconut shell activated carbon to increase filtration efficiency and extend filter life. Activated carbon is an effective adsorbent because it is a porous material and provides a large surface area to which contaminants may adsorb. They are tested by an independent third-party to meet NSF/ANSI standards. Water flow: up to 15 GPM.
Peace of Mind Customer Service: Register online to activate your 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 FP15BX4 Sediment Filter Replacement Cartridge for Whole House Water Filtration Systems, High Capacity 5-Micron Premium PP, 4.5" x 10", Pack of 4, white (FP15BX4)
[Premium Quality Material] Complies strictly with FDA standard (CFR-Part 177) and tested by independent third party against NSF/ANSI standard((NSF/ANSI 42) for material safety and water quality. The polypropylene construction provides superior chemical resistance and is not prone to bacterial attack. This filter can also be used for pool and hottub.
[Multi-layer Density Tech] A combination of a sparse layer, compaction layer, and precision layer ensures this iSpring premium 5-micron polypropylene sediment filter captures dirt, sand, silt, dust, rust, and scale particles effectively.
[Exceptional Filter Life] Filters up to 15,000 gallons depending on the use and feed water quality. Replace the filter every 3-6 months to achieve optimal performance. Combining with other filters such as CTO filter(FC15B), iSpring fine PP sediment filter not only brings clean and refreshing water to every faucet in your home but also helps to prolong the lives of your appliances and protects plumbing from sediment and scale buildup.
[Great Compatibility] Official 1-stage sediment filter for iSpring whole house water filtration system WGB21B. Fits standard 10 inch whole house water filtration systems. Individually sealed for freshness.
[Peace-of-Mind Customer Support] Your risk-free shopping experience is backed by a 30-day money-back guarantee and lifetime tech support from iSpring in Atlanta, GA at (678) 261-7611.