Unicel C-7491 75 Sq. Ft. Pool Filter Cartridge | 18 7/16" x 7" | Pentair/Pac-Fab Sea Horse 300 Natural Chemistry or missing screws restores a

or missing screws restores a proper watertight fixture-to-niche connection and maintains the structural integrity of the niche assembly

restoring normal operating pressure and flow

High quality

This gasket forms the watertight seal between the 4 in

Unicel C-7491 75 Sq. Ft. Pool Filter Cartridge | 18 7/16" x 7" | Pentair/Pac-Fab Sea Horse 300 Natural Chemistry or missing screws restores aThe Unicel C 7491 is a precision engineered 75 sq. ft. replacement filter cartridge for the Pentair and Pac Fab Sea Horse 300 cluster filter systems. Built with 150 pleat, 4 oz. Reemay 2040 polyester media and open end caps on both ends, this cartridge delivers consistent flow and long lasting filtration performance to demanding high volume pool systems. IMPORTANT: Full Filter Service Requires 4 Cartridges Your Pentair Pac Fab Sea Horse 300 and Sea