Unicel UHD-SR50 Replacement Filter Cartridge 52 sq. ft. | Sta-Rite Posi-Flo 50 FC1293 Measure your current cartridge's overall

Measure your current cartridge's overall length (OAL) before placing your order

Reemay 2040 spunbond polyester media and 260 precision-formed pleats

Initial: 1 quart per 15

and modular filter housings

Unicel UHD-SR50 Replacement Filter Cartridge 52 sq. ft. | Sta-Rite Posi-Flo 50 FC1293 Measure your current cartridge's overallThe Unicel UHD SR50 is a premium UHD Series replacement filter cartridge delivering 52 sq. ft. of heavy duty filtration area for Sta Rite Posi Flo 50 pool and spa filter systems. Built with 4 oz. Reemay 2040 heavy duty polyester filtration media a full ounce heavier than standard 3 oz. cartridges the UHD SR50 delivers superior dirt holding capacity, enhanced durability, and extended service intervals. With 195 precision formed pleats maximizing media