Unicel UHD-SR137 Replacement Filter Cartridge 137 sq. ft. | Sta-Rite Posi-Flo 135 Drains low drip formula that fades

low drip formula that fades to clear after exposure to UV for clean joints in exposed installations

Also known as: FG1006

The Polarshield Pro Strength 35' x 50' Rectangle Pool Cover is made of extra strong polyethylene sheeting woven with thick polyethylene stitching

Length is measured from one end of the grid to the other (collar not included)

The CMP-exclusive "sawtooth" lip design churns the water like river rapids

Unicel UHD-SR137 Replacement Filter Cartridge 137 sq. ft. | Sta-Rite Posi-Flo 135 Drains low drip formula that fadesThe Unicel UHD Series UHD SR137 is a 137 sq. ft. replacement filter cartridge precision engineered for Sta Rite Posi Flo 135 series pool filters. Built with heavy duty 4 oz. Reemay 2040 filtration media a full ounce heavier than standard 3 oz. cartridges and 216 precision formed pleats, the UHD SR137 delivers deeper dirt holding capacity and extended service intervals, keeping your water clearer between cleanings. Specifications Filter Area 137 sq.