LIGHTWEIGHT & PORTABLE: Easy to store and haul, this mini utility pump offers big value in a little packageMULTIPURPOSE: Perfect for transferring water from aquariums, washing machines, water beds, water heaters, clogged sinks, and more.Features:Flow range: 0-400ml/min (pump tube: inner diameter 6.4mm outer diameter 9.6mm)Standard pump tube: inner diameter 6.4mm outer diameter 9.6mm; applicable to pump tube with wall thickness 1.6mm and outer diameter less than 9.6mmReasonable flow rate: pump tube 6.4*9.6, pump head per flow: 1.5 ml, recommended speed less than 400 rev / min (short working time, able to fully dissipate heat, if necessary, can design the maximum speed to 500 rev / min)Pump tube selection: The general standard pump tube has 4.8*8, 6.4*9.6Number of rollers: 3 rotor rollersPump cover color: transparent colorOptional voltage: DC geared motor has 12V, 24V, 42 stepping motorMotor power: DC motor is about 10W, 42 step motor is about 30WShell material: PC plastic (polycarbonate)Roller material: POM plastic (polyoxymethylene)Application: Beverage Pump, Warewashing Equipment, Laundry Equipment etc