Confined Space Blower Blower/Fan Speed 3 450 RPM Current (A) 15.4 A Duct Diameter 16 in Horsepower 1 1/2 hp Maximum Flow in Free Air 4 663 cfm Voltage 115/208 to 230 V AC Color Orange Material Steel Height 19 in Length 18 in Width 18 in Standards CSA Certified Motor UL Listed Type Axial Explosion Proof