Unicel C-7487 Replacement Filter Cartridge for 100 Square Foot Hayward CX870RE
100 Square Foot Hayward CX870RE. Replacement for: Hayward Pool Products CX870XRE (Note: Four 100 Square Foot cartridges required.); Hayward Pool Products CX870XRE (Note: Four 100 Square Foot cartridges required.)