Product Overview: 1. Oil-less piston pump,maintenance free,flow rate can reach to over 80L/min,rapid vacuum rising. 2. Overflow protection device prevents liquid from entering into the inner pipe. 3. Air filter protects pump from being polluted. 4. Transparent and high intensity polycarbonate plastic jar,high capacity and easy to clean. 5. Can select empty container fast during operation by change-over valve,rinsing cup is for placing catheter during operation. 6. The accessory box on the back of the case is for laying foot switch,power cord,etc,which is more convenient during movement or storage.