The FC15B-PB and FG15B-KS filters offer premium water filtration with features designed to ensure safer, cleaner water for your household. The FC15B-PB removes up to 99% of lead, while the FG15B-KS employs advanced GAC+KDF filtration to reduce PFAS, PFOA/PFOS, chlorine, mercury, and other impurities, improving taste and clarity. Compatible with standard 10" x 4.5" housings, these durable filters last up to 12 months or 80,000 gallons, depending on water quality. Individually wrapped for guaranteed freshness, they are backed by a warranty and lifetime U.S.-based tech support. Note: For TDS reduction, consider iSpring Reverse Osmosis systems.