BD-5 belt driven air compressor double cylinder: two cylinder and two air filter, double charge ability and double fast and double quiet. Two pressure gauges: tank pressure and adjusted pressure take control every come. Oil Mirror: it can visually display the remaining oil amount. CE starting switch: safe & easy to operated with stable quality and long life. Durable 1-way valve: good on reduce the noise, maintains free for working life. Roped brass drain valve: anti-rust and easy tu drain the tank water and fit back. Rubber wheel: high quality, more wear resistant and more durable. Safety valve: CE standard safety valve automatic pressure relief. As a professional air compressor manufacturer, we believe that you have the most demanding requirements for your products our goal is to meet your requirements. In fact, Obao does much more than that. As an industry expert, we hope to win your permanent trust. This is the driving force for us to never stop and strive for perfection. You will benefit from this, more outstanding results, more targeted solutions and more innovative services, accompanied by more successful initiatives Our achievements are always inseparable from our team and our products. Their values, actions and enthusiasm drive the company forward. Thanks for your trust.