Features Adopt screwless design, easy to disassemble and maintain Support CW and CCW: Switch the positive and negative pole of the power supply, realizing the CW and CCW of the pump head Flow Direction: You can control the flow direction by the positive and negative connection. No valves and seals, convenient hose replacement, easy maintenance These small dosing pumps have the function of self-priming Features: Adopt screwless design, easy to disassemble and maintain Support CW and CCW: Switch the positive and negative pole of the power supply, realizing CW and CCW of the pump head Flow Direction: You can control the flow direction by the positive and negative connection. No valves and seals, convenient hose replacement, easy maintenance These small dosing pumps have the function of self-priming Widely used in the fields of experimental, biochemical analysis, pharmaceuticals, fine chemicals and biotechnology Specification: Color: Black, White, Green(Optional) Flow range: 10mL/min - 90mL/min DC motor: 12V Silicone hose: 3*5 Flow rate: > 80ml/min Material pump head: ABS Pump tube: transparent silica gel tube Pulsation: three rollers with low pulsation Weight: about 83g Package list: 1*Peristaltic Pump Package List