Features ​【Easy to Disassemble and Maintain】Peristaltic Pump adopts the design without screw clasp, easy to disassemble and maintain, convenient to install and use 【Supports CW and 2C】DIY Peristaltic Pump supports CW and C CW: switching power supply positive and negative pole, realize the CW and CCW of the pump head 【Function of Self-priming】Peristaltic dosing pump can help control the flow direction by the positive and negative connect and has the function of Self-priming 【Convenient Hose Replacement】Aquarium Peristaltic Pump is designed of no valves and seals, convenient hose replacement , easy maintenance 【Wide Application】Chemical dosing pump can be widely used in the field of experimental, biochemical analysis, pharmaceuticals, fine chemicals, biotechnology Specification: Color: Black, white, green (Optional) Flow range: 10ml/min -90ml/min Dc motor: 12V Silicone tube:3 * 5 Flow rate:> 80ml/min Material of pump head: ABS Pump tube: transparent silica gel tube Pulsation: three rollers with small pulsation Weight: 83 g / 2.9 oz(approx.)   Features: 【Easy to Disassemble and Maintain】Peristaltic Pump adopts the design without screw clasp, easy to disassemble and maintain, convenient to install and use 【Supports CW and 2C】DIY Peristaltic Pump supports CW and C CW: switching power supply positive and negative pole, realize the CW and CCW of the pump head 【Function of Self-priming】Peristaltic dosing pump can help  control the flow direction by the positive and negative connect and has the function of Self-priming 【Convenient Hose Replacement】Aquarium Peristaltic Pump is designed of no valves and seals, convenient hose replacement , easy maintenance 【Wide Application】Chemical dosing pump can be widely used in the field of experimental, biochemical analysis, pharmaceuticals, fine chemicals, biotechnology Package list: 1 x Peristaltic Pump Package List