The Hayward HW CX-1200RE R is a compatible replacement for the following spa filters:
The Hayward CX-1200RE Comp. Replacement Pool Filter is a pool filter replacement that features 4" Open top and bottom holes with 125 sq. ft. of total media area. This compatible Hayward filter measures 8 15/16" x 23 5/16" and purifies the water in swimming pools and spas.