... box housing, 6-wing blade, 0.75kw, greenhouse exhaust fan, poultry fan Features:Galvanized materials.Heavy-duty, totally enclosed, maintenance free, and ... have standard hardware cloth. OSHA guard options available.Item No.Fan Blade DiametermmFan Blade RPMr/minMotor RPMr/minVoltagevHzPowerkwAir Flowm3/hNoisedbOuter Size ...