aterial: Engineering plastics, SiliconeVoltage: DC 12VPump tube size -- Flowrate:1mm ID x 3mm OD -- 2~17 mL/min2mm ID x 4mm OD -- 5~50 mL/min3mm ID x 5mm OD -- 19~100 mL/min ✔Note--up to 100 mL/min without connectorsWorking temp: 0~40 ℃Relative humidity: <80%Pulsation: 3 rolling wheelEasy to use: ①With Snap-in type design, it is easy to remove the pump head, very convenient for pump tube replacement and cleaning.②The compact design not only has the convenience of press type, but also avoids many problems such as the movement of the press type pump head hose.③This pump is widely used, family watering, experiment liquid dispensing, chemical liquid transport etc.Feature: Silent work Suitable for aquarium, chemicals, liquids, dosing additives It is very easy take apart and clean, so there is gap between motor and pull out and push in is ok.Package includes: 2Pcs x 12V DC Dosing Pump