The Star Clear C500 R is a compatible replacement for the following spa filters:
The Hayward Star Clear C500 Comp Pool Filter Cartridge is a pool filter replacement that purifies swimming pool and spa water through 50 sq. ft. of media area. This compatible Hayward filter measures 7" x 19 5/8" with 3" Open top and bottom holes with Gasket. This spa filter cartridge features premium media for the reduction of contaminants and impurities in water.