iSpring F3WGB31BKSNC Whole House Water Filter Replacement Pack, SGS-Tested to Remove up to 94.4% of Chloramine, Reduces Heavy Metals, Lead, Chlorine, Sediment, 10" × 4.5"; Filters, Fits WGB31B-KSNC

The iSpring F3WGB31BKSNC 3-stage filter replacement pack is a specially designed to keep your WGB31B-KSNC whole house water filtration system performing at its best. This set includes a high-capacity sediment filter (FP15B) that captures dirt, rust, and debris, followed by a premium GAC KDF filter (FG15B-KS) to reduce chlorine, lead, mercury, hydrogen sulfide, pesticides, and other water-soluble heavy metals. The final stage employs an advanced catalytic carbon filter (FC15B-NC), whose media has been independently tested by SGS according to NSF/ANSI 42 standards, achieving up to 94.4% chloramine removal. It also helps reduce chlorine, VOCs, and unpleasant tastes and odors, providing cleaner, fresher-tasting water throughout your home. Perfect for households using the iSpring WGB31B-KSNC or other standard 10" x 4.5" whole house water filter systems, this replacement pack delivers dependable filtration for both city and well water applications. Together, these filters can treat up to 50,000 gallons of water or last up to 12 months, depending on water quality and usage, providing clean, fresh water to every tap in your home. Each cartridge is individually sealed to preserve freshness and maintain top filtration performance. This whole house water filter replacement retains healthy minerals in your water and does not reduce TDS. For total dissolved solids (TDS) removal, pair it with an iSpring Reverse Osmosis system for complete water purification.