24 Inch Square Frame With Four 12 Inch Square Flat Grate Anti Entrapment Suction Outlet Covers White pool dimensions_20x50 and two Stenner commercial pump and two Stenner commercial pump mounted on a 2 x 2 foot backboard This cleaner also features the Flowkeeper Valve which automatically regulates water flow The Trademarked VGBA compliance button easily identifies this VGBA 2017 complaint cover from on deck and underwater They are designed to replace standard 24 inch square 2 x 2 grid cover assemblies that have four 12 inch covers with 11 1 4 inch center to center screw hole measurements with 3 4 inch deep existing frames