The Unicel C-7678 R is a pool and spa water filter cartridge that is the correct compatible replacement for the following filters:
The Unicel C-7678 Comp. Pool Water Filter Cartridge has an outer diameter of 7 7/8 inches, with a length of 11 1/8 inches. This Unicel pool filter has an open top and bottom with both having diameters of 3 1/16 inches. This Unicel C-7678 filter contains 50 square feet of filter media.