Zodiac's Nature 2 DuoClear 25 Mineral Cartridge
Nature 2 DuoClear Mineral Cartridge for Use in DuoClear Salt Water Chlorinators, Nature 2 Fusion and Nature 2 Fusion Soft Mineral Systems. This DuoClear cartridge is designed for pools up to 25,000 gallons and lasts for up to 6 months of use.
Zodiac Nature 2 W26000
Zodiac Nature 2 W28000