iSpring WGB31B-KSNC Whole House Filter System: SGS-Tested, removes 94.4% Chloramine. 3-Stage filtration for Lead, Metals & VOCs. 10”x4.5” filters with 1” Inlet/Outlet for high flow.

"The iSpring WGB31B-KSNC 3-stage water filter system is a compact yet powerful solution for improving your home’s water quality. Featuring a 3-stage filtration setup, it includes a 10” polypropylene sediment filter that captures dirt, rust, and debris, followed by a GAC + KDF filter that targets heavy metals such as lead and mercury, hydrogen sulfide, pesticides, and other common contaminants found in both city and well water. The final stage employs an advanced catalytic carbon filter, whose media has been independently tested by SGS according to NSF/ANSI 42 standards, achieving up to 94.4% chloramine removal. It also helps reduce chlorine, VOCs, and unpleasant tastes and odors, providing cleaner, fresher-tasting water throughout your home. Enhanced catalytic reactivity enables the filter to break down persistent disinfectants more effectively than standard carbon, making it ideal for households using chloraminated municipal water. Compact filter housings with standard 1"" NPT inlet/outlet connections offer DIYeasy installation and reliable flow rates with minimal pressure drop. With up to 50,000 gallons per set, this whole house water filter system is a dependable choice for homeowners aiming to enhance overall water quality throughout the entire home. Each cartridge is individually sealed to ensure freshness and peak performance. For complete water purification, including TDS reduction, pair this system with an iSpring Reverse Osmosis system."

• ‌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 DIYsimple 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.