Amazon.com : Hayward CX500RE Replacement Cartridge Element : Swimming Pool Cartridge Filters : Patio, Lawn & Garden
Amazon.com : DPM Hayward StarClear Cartridge Replacement Pool Filter for StarClear Series C500 Pleated 2 Pack Made in USA | Replacement for C-7656 FC-1240 CX500RE (50 Sq Ft (19 5/8" Height) C500