iSpring WGB31B-KS Whole House Water Filter System, Reduces Heavy Metals, Lead, Chlorine, Chloramine, Sediments, 3-Stage Filtration, 10” x 4.5” Filters, 1” Inlet/Outlet

The iSpring WGB31B-KS whole house water filter system delivers effective, space-efficient protection for homes with moderate water usage or installation space constraints. This 3-stage filtration setup features a premium GAC+KDF filter in stage 2 that targets a wide range of harmful contaminants—reducing heavy metals, lead, mercury, hydrogen sulfide, and more, commonly found in both municipal and well water. Paired with a high-efficiency sediment filter and a coconut shell carbon block, the WGB31B-KS helps eliminate dirt, rust, chlorine, odors, and unpleasant taste—providing clean, great-tasting water from every tap. Compact filter housings with standard 1” NPT inlet/outlet connections offer easy installation and reliable flow rates with minimal pressure drop. With a capacity of up to 50,000 gallons per set, this system is a reliable choice for households looking to improve water quality throughout the entire home. Each cartridge is individually sealed to ensure freshness and top filtration performance. For complete water purification including TDS reduction, pair it with an iSpring Reverse Osmosis system.

• ‌Reliable 3-Stage Whole House Water Filtration – This whole house water filter system features a 10” x 4.5” sediment filter, a GAC+KDF compound filter, and a high-quality carbon block filter to effectively reduce sediments, chlorine, heavy metals, chloramine, odors, tastes, and other chemicals across your entire water supply.
• 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.
• Durable & Low Maintenance – Built for long-term performance, this compact whole home water filtration system supports flow rates up to 15 GPM and treats up to 50,000 gallons of water.
• DIY-Friendly Setup — The WGB31B-KS uses 1” NPT connections and standard 10” x 4.5” cartridges for simple installation with the help of our detailed manual and YouTube tutorials. It delivers strong water flow (up to 15 GPM) and low maintenance.
• Hassle-Free Maintenance — Red pressure release buttons make changing filters quick and easy by releasing pressure in the housings.
• 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.
• Individually Sealed — Each cartridge is sealed for maximum freshness and performance. Please remove the wrapping before installation.
• 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.