12V Peristaltic DIY Aquarium Dosing Pump Chemical Tube Head OOTDTY Features: Adopt design without screw fastener, easy to disassemble and maintain. Support CW and CCW: switch positive and negative pole of power supply, realize CW and CCW pump head. Flow direction: you can control the flow direction with a positive and negative connection. No valves or seals, convenient hose replacement, easy maintenance. This small metering pump has a self-priming function. Widely used in experimental field, biochemical analysis, pharmaceuticals, fine chemicals, biotechnology. Peristaltic pump only, other accessories shown in the picture are not included! Specification:Type: peristaltic pump Material: Plastic Flow Range: 10ml/min -90ml/min DC Motor: 12V Flow Rate:gt; 80 ml/minColor: Black; Blue; Green; Yellow; Size: Total Length: app.6.5 cm / 2.56 in; Side Diameter: app.2.7cm/1.06inchQuantity: 1pcNote:No retail package. Please allow 0-1cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Included:1 x Peristaltic Pump