... Base ,V-belt cover,Blower Pulley,Motor Pulley,V-belt,Inlet Silencer(with air filter),Safety Valve,Pressure Gauge,Lubricating ... blower features:o Wide range of capacity and pressure o Delivers completely oil-free air o Low ... revised by computer o Smaller change in capacity against change in pressure o High efficiency due to special ... ยท 11.Small Orders Accepted ZYSRH50 roots blower in water treatment