20" x 4.5" Replacement GAC KDF & PFAS Filter for WGB22B-PFKS Whole House Water Filter System

The iSpring F2WGB22BPFKS replacement filter set is built to maintain the full 2-stage filtration performance of your WGB22B-PFKS whole house water filter system. It includes a GAC KDF filter that targets chlorine, heavy metals, hydrogen sulfide, and unpleasant odors, and a premium carbon filter featuring filtration media tested by SGS to reduce up to 99% of PFAS, including PFOA and PFOS that commonly found in tap water. Together, these filters help improve taste, reduce chemical byproducts, and support better water quality throughout your home. Designed to fit standard housings that use 20" x 4.5" water filters, each filter can last up to 12 months or treat 100,000 to 150,000 gallons of water. This dependable replacement set is ideal for homes using city or well water and helps ensure your whole house filtration system continues to deliver reliable performance. For TDS reduction, pair with an iSpring RO system for point-of-use purification.

Features:

• 2-Stage Whole House Filter Replacement - Includes both filters needed to maintain the performance of your WGB22B-PFKS whole house water filter or other whole house water filtration systems requiring standard 20" x 4.5" water filters.
• Stage 2 GAC KDF Filtration - The FG25B-KS water filter targets chlorine, lead, mercury, hydrogen sulfide, and other harmful contaminants using high-quality granular activated carbon and KDF media. It also helps reduce unpleasant taste and odor.
• Stage 2 PFAS Removal Filter - The FC25B-PF carbon filter uses SGS-tested filtration media to reduce up to 99% of PFAS, including PFOA and PFOS. It also reduces residual chlorine, VOCs, and chemical byproducts, making it a great PFAS water filter option.
• High Capacity & Long Lifespan - Each cartridge in this whole house filter replacement set lasts up to 12 months or treats 100,000 to 150,000 gallons of water, depending on usage and water quality. It's a smart solution for both city and well water filter system needs.
• Freshness Guaranteed - Every cartridge comes individually sealed at the factory to ensure maximum cleanliness and peak performance. Simply unwrap and install.
• Lifetime U.S. Support - Our friendly customer service team is always ready to guide you through filter replacement and whole-house system maintenance.
• Please Note - These whole house water filters retain healthy minerals and do not reduce TDS. For total dissolved solids removal, explore our iSpring Reverse Osmosis systems.