High Capacity Filters: a 2-stage whole house water filtration system featuring a 1st-stage KDF plus GAC carbon filter (FG15B-KS) and a 2nd-stage CTO carbon block filter (FC15B). 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.

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.

I bought this whole house filtration system a month ago because I love the company so much. I’ve had their PH100 RO system for drinking water for about 5 years and we love it. More importantly, the few times we’ve had an issue, we called iSpring support, and someone from Georgia picked up the phone and gave us all the help we needed. Since installing this new whole house system, we already noticed that it is helping my son’s eczema and my wife’s hair. It’s a great product with an even greater company behind it.. Rob. Hauppauge, NY. Sun Mar 01 2026

Cutting-Edge Filtration: Our system employs advanced water purification with three specialized filters. The first-stage FP25B polypropylene sediment filter captures minute particles (down to 5 microns). The second-stage FG25B-KS compound filter targets a broad spectrum of contaminants, including chlorine, chloramine, lead, mercury, hydrogen sulfide, heavy metals, and PFAS. The third-stage FM25B iron water filter is dedicated to reducing iron levels (up to 3.0 ppm) and manganese (up to 1.0 ppm).

The WGB22B whole house filtration system is an ideal "point of entry" filtration system for cleaning up water supplies to a home or business on municipal (city) water. Unlike "point of use" systems (like reverse osmosis systems) that are installed to supply water to a specific faucet, the WGB22B filters your water from the source. This means water from every output in your home will have passed through the two filtration stages of the WGB22B. The stage 1 housing holds a 5-micron high-capacity polypropylene sediment filter. This filter removes dirt and other various larger sized particles from the water that can clog the following filter. The second stage of the WGB22B houses a CTO coconut shell carbon block filter. Block carbon is more effective than other forms of carbon in that it is finely ground up carbon packed into a solidified block. This means they have a higher density than other types of carbon filters, and are therefore more effective in removing their targeted contaminants. The carbon block filter knocks out bad tastes and odors, removes up to 90% of chlorine from the water, and is highly effective on chemicals like pesticides, herbicides, and industrial chemicals.

Enjoy pure and clean water from this water system. Ease to install, good instructions and give me best water solutions.. Bernie. Sun Apr 12 2020

Discover our advanced 3-stage whole house water filter system for unparalleled water quality. The first stage uses a high-performance PP sediment filter to capture particles down to 5 microns, preventing clogs and extending filter life. In the second stage, our GAC and KDF composite filter effectively removes contaminants like chlorine, PFAS, lead, radon, chloramine, and H2S, enhancing taste and odor. The third-stage CTO filter ensures precise filtration by eliminating residual chlorine, fine impurities, and lingering odors, leaving your water pure and clear. Monitor filter condition easily with the transparent housing. It handles 30,000 gallons for up to six months. Enjoy peace of mind with easy installation, lifetime U.S.-based technical support, and an extended warranty upon online registration.

The iSpring WGB31BM whole house water filter system provides reliable protection for households with limited space or moderate water usage. This 3-stage system includes a sediment filter to remove dirt, sand, and rust; a carbon block filter to reduce chlorine, taste, odor, and VOCs; and a dedicated iron and manganese water filter that removes up to 3.0 ppm of iron and 1.0 ppm of manganese using long-lasting catalytic media. Built with standard 1” inlet/outlet ports and 10” x 4.5” filter cartridges, this compact whole home water filtration system installs easily and filters up to 50,000 gallons with minimal pressure drop. Each cartridge is individually sealed to maintain freshness and performance. For total dissolved solids (TDS) reduction, pair it with iSpring Reverse Osmosis systems for complete water purification.