Multi-media filter cartridge (KDF/GAC) replacement for Crystal Clear Supply filters item numbers CT, CTD, CTD-CB, CTD-S, UC, UCD, UCD-CB.
Will also fit industry standard housings designed for standard 9 ¾" cartridges length by 2 ½" to 2 ¾" width. Rated to treat 12,000 gallons! Includes chlorine test strips to verify when it's time to replace cartridge.
3 year prorated warranty.
Click to see how KDF/GAC filters work.