Inline Duct Blower Round Centrifugal With Drive Package Wheel Diameter 13 In Drive Type Belt Drive CFM @ 0.000-In. SP 3310 @ 0.125-In. SP 3265 @ 0.250-In. SP 3219 Voltage 208-230/460 Motor HP 2 Height 37-1/8 In Width 19 In Maximum Depth 24-1/2 In Inlet Diameter 20-3/8 In Outlet Diameter 20-3/8 In Mounting Position Horizontal or Vertical Finish Polyester urethane Type B Spark Resistant Construction AMCA Sound Air UL/cUL 705