The Waterway 817-0012 R is a compatible replacement for the following pool and spa filters:
The Waterway 817-0012 Comp. Spa Filter Cartridge has a diameter of 6 inches, and a length of 8 1/4 inches. This spa filter cartridge has an open cross castle style top, and a bottom opening that has a diameter of 1 1/2 inches with Society of Automotive Engineers (SAE) threads. This pool filter replacement will keep the water in your pool or spa clean and clear.