.5 HP Briggs & Stratton motor - meets CAL/OSHA emission standards5ft. remote flexible steel exhaust hose with custom gas-tight muffler to prevent intake of CO exhaustPolyethylene fan housingPowder coat steel frame with dual handlesMolded safety guards8" intake and exhaust flangeCE registeredWeight: 53 lbs.Dimensions: 23"L x 12"W x 19"H1500cfm min/3000cfm max free air delivery1040cfm min/1725cfm max, 25ft. duct, 1 - 90° bend