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The Unicel C-9403 R is a pool and spa water filter cartridge that is the correct compatible replacement for the following filters:
The Unicel C-9403 Comp. Pool Filter Replacement has an outer diameter of 10 inches, with a length of 25 1/4 inches. This Unicel pool filter has an open top and bottom with both having a diameter of 6 inches. This Unicel C-9403 filter contains 150 square feet of filter media.