... noise, 2.small vibration 3.Temperature 100degree Promotion!!!RO booster pump for RO water purifier Specifications E-CHEN pumpVoltageDC12v/24v/ 36v AC ... 110v/220vRated Current0.7, 0.9, 1.2, 1.4, 1.7 ... , 2.6Port3/8"NPTFBoost/Water Flow50G, 75G, 100G, 200G, 300G, 400GApply to pressure0.05mpa- 0.4mpaFit for RO water Purifier50G ...