Confined Space Centrigual Blower Height 20 in Length 20 in Width 20 in Duct Diameter 8 in Engine Brand Briggs Stratton Includes 5 ft Remote Flexible Steel Hose Blower/Fan Speed 3 000 RPM Horsepower 4 hp Maximum Flow in Free Air 3 000 cfm Run Time 2.5 hr Standards CE Registered Color Gray Fuel Type Gasoline Material Steel