[Peristaltic Liquid Pump]: Applicable power supply: DC 12V; working environment: temperature 0-40; flow rate range: 0-23ml/min 0-65ml/min 0-150ml/min; speed range: 0.1-60rpm;current: 250 -300mA 100% brand new, this peristaltic pump made of high quality material, durable and long service life. [Easy to install]: The motor diameter is about 32mm / 1.3in, the height is about 23mm / 0.9in, and the mounting hole center distance is 48, 5mm / 1.9inch, which is easy to install and remove. [Optional Style]: The peristaltic pump has three styles to choose from, optional style (inner diameter x outer diameter): Type A: 1x3mm rubber tube, Type B: 2x4mm rubber tube, Type C: 3x5mm rubber tube . [Average flow direction]: The flow direction of the peristaltic pump depends on the positive and negative terminals of the power supply, and the connection terminals can be chosen arbitrarily. [Wide Range of Applications]: This peristaltic pump suitable for experiments, biochemical analysis, pharmaceuticals, fine chemicals, bioengineering, pharmaceutical filling, food, paper, ceramics, to water treatment, environmental protection and other fields is widely used.