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The Filbur FC-1240 is the replacement filter for the Unicel C-7656 R. Guaranteed to fit or your money back!
The Unicel C-7656 Comp. Pool and Spa Filter Cartridge has top and bottom open holes with gaskets that have diameters of 3 inches. This pool filter replacement has a diameter of 7 inches and a length of 19 5/8 inches. This spa filter cartridge will keep the water in your pool or spa clean and clear.