Home Ventilation Fans & Blowers 12” to 48”Direct Drive Tube Axial Duct Fans – 1750 RPM (7.5 HP Frame/Prop) Cincinnati Fan 12” to 48”Direct Drive Tube Axial Duct Fans – 1750 RPM (7.5 HP Frame/Prop) $2,192.39 12” to 48”Direct Drive Tube Axial Duct Fans – 1750 RPM (7.5 HP Frame/Prop) quantity Add to cart