Pentair Predator II/Dynamic IV DFM Filter Cartridge - 25 Square Feet filter-length_20 1/8 inches They are battery-powered

They are battery-powered

rust and corrosion with the rugged aluminum construction

This is a 2 pound canister of Chlorine Remover which contains Sodium Thiosulfate and removes excess chlorine and bromine from your pool water

and dustproof with a handle

duckbills and 1/4 inch ferrules and works with the Classic and SVP model pumps

Pentair Predator II/Dynamic IV DFM Filter Cartridge - 25 Square Feet filter-length_20 1/8 inches They are battery-poweredThe Pentair Replacement Cartridge for Dynamic Series IV Model DFM, DFML and Predator II 25 Square Foot Filters, 3 oz., has a media area of 25 square feet. Pentair reusable cartridge filter elements are made of a superior reinforced polyester material. Pentair elements provide a high degree of water clarity and longer filter cycles. To maintain your pool water cleanliness and clarity, Pentair genuine replacement cartridge elements are the number one