Specifications:
Motor RPM:5000RPM
Driver size（Φx H）:Dia.27.6 x Height 37.9 (mm)
Pump head size(Φx H):Dia. 31.7 x Height 20.1(mm)
Pump tube size(IDxOD) :2.5*4.7mm
Weigh: 200g
Flow direction: you can control the flow direction by the positive and negative connect 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 pump.just pull out and push in is ok
Packahe included : 1 * 12V DC DIY Dosing pump Peristaltic dosing Head

Please note:
* ZJchao(TM) is a member of Brand Registry on Amazon and is the only authorized seller of ZJchao branded products.
* ZJchao provides all cutomers the qualified products branded with ZJchao, and will take the responsibility for all the products sold by zjchao123 on amazon.com.
* ZJchao highly appriciate all customers' opinions to improve our products and services,also feel free to contact our customer service if you need any help.

• Volts:DC 12V
• Current:80mA
• Relative humidity £¼80%
• Flow rate:0-100 ml/min
• Rotate speed:0.1-100 rpm