Unicel C-8417 Replacement Filter Cartridge for 175 Square Foot Hayward C1750RE, Hayward C1900RE, Waterway Pro Clean 175
175 Square Foot Hayward C1750RE, Hayward C1900RE, Waterway Pro Clean 175. Replacement for: Hayward Pool Products CX1750RE; Waterway Plastics 817-0175P