The integrated pneumatic high-speed blow-off on the VP0X pump provides a fixed-duration blow-off, based on the volume of the housing. With the VP0X-ADJ adjustable vacuum pump, you can control the intensity of the blow-off using one fingertip adjustment knob. (Customer-supplied directional control valve with exhaust required.) Only one compressed air line provides both vacuum and blow-off, with no electricity required.Fast Response – compact, lightweight and installs close to vacuum pointEfficient – minimal air consumptionReliable – operates trouble-free, straight-through design, non-cloggingNo moving parts to wear or clogNo flap valves to stick openAutomatically cleans vacuum lines, no maintenance, no downtime