10" x 4.5" Replacement Chloramine, GAC KDF, & Sediment Filter for WGB31B-KSNC Whole House Water Filter System

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.

Features:

• Reliable 3-Stage Whole House Water Filter: This whole house water filter repleacement set includes a 10" sediment filter, a GAC KDF media filter that targets lead, mercury, hydrogen sulfide, pesticides, and other common contaminants, and an advanced catalytic carbon block that reduces chloramine, chlorine, VOCs, and unpleasant odors - providing cleaner, better-tasting water across your entire home.
• Powerful Heavy Metal Reduction: The FG15B-KS water filter in the second stage uses a GAC KDF media to reduce lead, mercury, hydrogen sulfide, pesticides, herbicides, and other common contaminants found in both city and well water.
• SGS-Tested Chloramine Removal: The third-stage FC15B-NC filter uses premium catalytic carbon to efficiently reduce chloramine, chlorine, VOCs, and unpleasant tastes & odors. Independently tested by SGS, the filter achieved up to 94.4% chloramine removal according to NSF/ANSI 42 standards, providing cleaner and safer water for your entire home.
• Compact Yet Powerful: Ideal for apartments, smaller homes, or vacation properties, this 10" x 4.5" whole house water filter fits tight spaces while delivering long-lasting, high-performance filtration.
• 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.