The Unicel C-4340 R is a pool and spa water filter cartridge that is the correct compatible replacement for the following filters:
The Unicel C-4340 Comp. Pool Filter Replacement has an outer diameter of 4 15/16 inches, with a length of 11 5/8 inches. This Unicel pool filter has both an open top and bottom with both having a diameter of 2 1/8 inches. This Unicel C-4340 filter contains 40 square feet of filter media.