The Hayward HW CX550-RE R is a compatible replacement for the following pool and spa filters:
The Hayward CX550-RE Comp. Pool & Spa Filter has a diameter of 7 inches, and a length of 19 5/8 inches. This spa filter cartridge has an open top and bottom with diameters of 3 inches. This pool filter replacement will keep the water in your pool or spa clean and clear.