The Unicel C-4611 R is a pool and spa water filter cartridge that is the correct compatible replacement for the following filters:
The Unicel C-4611 Comp. Coleco F-112 Spa Filter has an outer diameter of 4 3/4 inches, with a length of 11 inches. This Unicel pool filter has an open top with a diameter of 1 1/8 inches, and an open bottom with a diameter of 2 3/8 inches. This Unicel C-4611 filter contains 5 square feet of filter media.