Zodiac DuoClear Cartridge W28000

W28000 Zodiac DuoClear Nature2 Replacement Cartridge Water Clarifier 25KFactory OEM DuoClear W26000/W28000 replacement cartridge for the DuoClear salt water chlorinator which provides the best water quality possible. For pools up to 25,000 gallons. DuoClear needs less chlorine to sanitize your pool which means less potential for stinging eyes, skin irritation and unpleasant chemical odors. DuoClear creates synergy between Nature2 mineral technology and Clearwater™ salt water chlorination. The Nature2 technology allows you to use low chlorine levels to effectively sanitize your pool water.Shipping included in the continental U.S.