Reliable 3-Stage Whole House Water Filter – This whole house water filter repleacement set includes a 10” x 4.5” sediment filter (FP15B), a GAC KDF compound filter (FG15B-KS), and a high-quality carbon block filter (FC15B) to effectively reduce sediments, chlorine, heavy metals, hydrogen sulfide, 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 remove chlorine, lead, mercury, hydrogen sulfide, heavy metals, pesticides, herbicides, odors, and other contaminants found in both city and well water. 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.