High-Capacity Sediment Filtration – The Stage 1 FP15B sediment filter captures dirt, rust, sand, and other particles as small as 5 microns. Designed to protect your plumbing system and extend the lifespan of carbon and specialty filters, it’s an essential first line of defense for any whole home water filter. SGS-Tested PFAS Removal – The Stage 2 FC15B-PF filter is SGS-tested to reduce up to 99% of PFAS, including PFOA and PFOS. This high-performance PFAS water filter offers proven protection against “forever chemicals” in municipal and well water, ensuring safe, clean water for your entire home. Heavy Metals & Chemical Defense – The Stage 3 FG15B-KS filter combines high-performance KDF and granular activated carbon (GAC) media to reduce chlorine, lead, mercury, hydrogen sulfide (H₂S), chloramine, radon, and other harmful contaminants. It is a powerful layer of protection in your whole house water filter for clean, health water at every tap. Built to Last – Designed for durability, these whole house water filters deliver 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 filter replacement. Freshness Guaranteed – Every water filter cartridge comes individually sealed at the factory to ensure maximum cleanliness and peak performance. Simply unwrap and install. Beneficial Minerals Intact – These water filter whole house filters your water while preserving essential minerals without lowering TDS. For complete removal of total dissolved solids, consider iSpring reverse osmosis systems. Peace of Mind Guaranteed – Supported by lifetime technical support from our U.S.-based customer service team. We’re here to assist you every step of the way as you replace filters and keep your whole-house system performing at its best.