The Unicel C-7656 R is a compatible replacement for the following pool and spa filters:
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.