The Dim One 1561-11 R is a compatible replacement for the following pool and spa filters:
The Dimension One 1561-11 Comp. Pool Filter Cartridge has a diameter of 5 1/2 inches, and a length of 11 7/8 inches. This pool filter has an open top with a diameter of 1 15/16, and an open bottom with a diameter of 2 3/8 inches. This pool filter cartridge will keep the water in your pool or spa clean and clear.