The iSpring WGB32B-PFKDS whole house water filter system delivers comprehensive 3-stage filtration to protect your home's water supply from a wide range of contaminants. Combining KDF + GAC media, an advanced carbon block, and a premium scale inhibitor, this system effectively reduces heavy metals, chlorine, PFAS (up to 99% including PFOA and PFOS with SGS-tested media), and scale buildup from calcium and magnesium. It provides clean, great-tasting water to every tap while helping extend the life of your pipes and appliances. With standard 1" NPT ports, 20" x 4.5" filter housings, and easy installation, the WGB32B-PFKDS is built to last up to 100,000 gallons or 12 months. Each cartridge is individually sealed for freshness, and the system is backed by a 1-year warranty and lifetime U.S.-based customer support. For TDS reduction, pair with an iSpring Reverse Osmosis system for complete home protection.