The Hayward HW CX1900-RE R is a compatible replacement for the following pool and spa filters:
The Hayward CX1900-RE Comp. Replacement Pool Filter has a diameter of 8 15/16 inches, and a length of 28 3/16 inches. This spa filter cartridge has an open top and bottom with diameters of 4 inches. This pool filter replacement will keep the water in your pool or spa clean and clear.