The Dim One 1561-04 R is a compatible replacement for the following pool and spa filters:
The Dimension One 1561-04 Comp. Spa Filter Cartridge has a diameter of 4 5/8 inches, and a length of 11 7/8 inches. This spa filter cartridge has a closed crescent handle style top, and a bottom opening with a diameter of 1 1/2 inches and Society of Automotive Engineers (SAE) threads. This pool filter replacement will keep the water in your pool or spa clean and clear.