Lead free brass check valve with 1/2" MPT. Direct OEM replacement. UV and impact resistant. Resistant to road salts and acids. Paintable. Cutout Dim: 3-1/2" dia. Outside Dim: 4-1/2" dia. Dish Depth: 3/4". Valve Depth: 2-1/2."

 PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov