The Unicel 5CH-45 R is a pool and spa water filter cartridge that is the correct compatible replacement for the following filters:
The Unicel 5CH-45 Comp. Replacement Pool & Spa Filter has an outer diameter of 5 1/4 inches, with a length of 10 inches. This Unicel pool filter has an open top with a diameter of 2 1/8 inches, and an open bottom with a diameter of 1 1/2 inches and having Male Pipe Threads (MPT). This Unicel 5CH-45 filter contains 45 square feet of filter media.