Replacement Star Clear Plus C-1200; 120 SQ.FT. Cartridge Element Replaces Hayward Star Clear Plus C-1200 filter cartridge 100% Reemay filter media Outside Diameter: 8 15/16 Length: 23 5/16 OEM# CX1200RE, Unicel# C-8412, Pleatco# PA-120, Filbur# FC-1293 Manufactured by Optimum Pool Technologies with the highest quality materials for easy cleaning and long life. Includes support bands around each cartridge element.