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fast-dissolving 73% calcium hypochlorite granules
Why this Dolphin stands out
5" X 3" plumbing compatibility: Plumb with either 2
Spiral wound construction: Eases winding and rewinding for tidy storage and quick setup
cross-brand solution that fits Hayward
Pentair Cartridge Element R173216 Dolphin Active series fast-dissolving 73% calcium hypochlorite granulesPentair Cartridge Element R173216 150 Sq. Ft. Pool Filter Replacement Keep your pool water sparkling with the Pentair Cartridge Element R173216. This high capacity replacement cartridge is built for Pentair Clean & Clear RP CCRRP, Predator, and Sta Rite Posi Clear RP canisters, delivering reliable filtration across seasons. With 150 square feet of filtration surface, it traps more debris per pass, reducing cleanings and maintaining clearer water with
