ITEM NAME:DC 3V 5V 6V Micro Liquid Pump Foam Pump Water Pump DIY Hand Washing Machine Description Specification: Brand new Rated Voltage: DC 4V No-load Current: 100mA Suitable Voltage: DC 3V-6V Inlet/Outlet Diameter: 4.3mm Feature: Used in automatic hand washing machines, disinfection machines. When the pump works, the liquid inlet suck the soap water, and the foam outlet will pump out the foam. Fine workmanship and good performance. Easy to use. Long service life. Package Included: 1pc x Micro Liquid Pump Note: Must connect the motor positive pin to power supply positive, must connect the motor negative pin to power supply negative. Please allow 1-5mm size errors due to manual measurement. Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same..When the pump works, the liquid inlet suck the soap water, and the foam outlet will pump out the foam. Used in automatic hand washing machines, disinfection machines. 1pc x Micro Liquid Pump. Long service life.