The HW CX580-XRE R is a compatible replacement for the following spa filters:
The Hayward CX580-XRE Comp. Pool Filter Cartridge is a pool filter replacement that purifies swimming pool and spa water through 325 sq. ft. of media area. This compatible Hayward filter measures 7" x 19 5/8" with 3" Open top and bottom holes. This spa filter cartridge feature premium filter media for the reduction of contaminants and impurities.