The UNICEL 4CH-19 R replaces the following pool and spa filters:
The Unicel 4CH-19 Comp. Replacement Pool Filter measures 4 5/8" in both diameter and length. This pool filter cartridge, also known as the Filbur FC-0122, has a Closed Crescent Handle top with a 1 1/2" MPT bottom. This Unicel pool filter has 13 square feet of media area for the reduction of contaminants in pool & spa water.