Discharge Cap For Fan Diameter 34 in For Fan Type Tubeaxial Mounting Hole Diameter 1/2 in Material Galvanized Steel Body Diameter 42 1/4 in Bolt Circle Diameter 34 1/2 in Finish Unfinished For Use With 3C413 Includes Clam Shell Damper Maximum Inlet Air Temperature 200 Degrees F Metal Material Thickness 1/2 in Overall Height 36 3/8 in Overall Length 42 1/4 in Overall Width 42 1/4 in Product Type Discharge Cap