Hayward High Flow 12" x 12" Square Main Drain Grate W Frame (WGX1032BHF2) ozone The after 2003 compatibility and quantity of eight The after 2003 compatibility and quantity of eight format give this set practical value because sand filter internals work best when they match the original model generation and quantity relationship closely The broad multi model compatibility gives this lid its practical value because closure parts work best when they match the original filter body relationship closely The WGX1032BHF2 is a practical service part when a compatible Hayward drain installation needs a grate and frame to restore dependable protection and finish Supports cleaner and more dependable drain coverage