JR Products 62155 White Aluminum City Water Flange - 12" FPT x 3/4" 1/2" FPT x 3/4" hose fitting Surface mount aluminum flange Lead free brass check valve Includes rubber dust cap Cutout Dimensions: 1-1/2" diameter; Outside Dimensions: 2-7/8" diameter; Valve Depth: 1-5/8"