... photos: SpecificationsApplication: HVACR Equipment, Machinery, Air Source Heatpump etc.Function: Ventilation, Cooling, Heating, Air Conditioning, Draft Inducing, Air Refreshing, Air Circulation and so on. Features1 ... , Φ110, Φ100, Φ98, Φ90, Φ80, Φ52… and so on.Centrifugal Blower Wheel:Φ48, Φ66, Φ135, Φ240, Φ235, Φ230, Φ300, Φ308, Φ317 ...