The UNICEL 4CH-65 R is the compatible replacement for the following pool and spa filters:
The Unicel 4CH-65 Pool Water Filter Comp. Cartridge has an outer diameter of 4 5/8 inches, and a length of 19 5/8 inches. This Unicel Pool Filter has a handle style top, and a 1 1/2 inch open bottom with male threaded fitting (MPT). This Unicel 4CH-65 filter contains 65 square feet of Reemay spunbound polyester pleated filter media.