Fire Pro's fire hydrant mount measures at 2-1/2” (64mm) or 3” (76mm) 150# ASA raised face flange discharge with 2-1/2” (64mm) NH female swivel inlet. The “C” clamp hydrant bracket support arms are designed to fit on virtually any fire hydrant style. The flange outlet is ideally to mount the flange base monitor on the butterfly valve. The mount finishes with a red polyester powder coat.