3Pcs DC 6V Diaphragm Pump 3L/min Micro Noiseless Vacuum Pumping Machine

1、The ultra?quiet design does not produce too much noise and the safe low voltage is adopted to guarantee safety. 2、The pump is small in size light in weight sturdy in structure easy to install and maintain and is an ideal substitute for the old pump. 3、Built-in pressure switch and overflow valve to protect the pump from damage and control the normal operation of the pump. 4、Made of engineering materials it can withstand high temperature and corrosion the flow rate can be 3L/min and the service life is long. 5、Suitable for gas pumping sewage treatment electroplating blasting biogas tank aeration tunnel ventilation etc.