Features： 1、Micro?peristaltic pump, adopts high?quality engineering plastics, durable, wear?resistant and not easily damaged. 2、Using mute design, no noise when working, simple operation method and long service life. 3、Built?in double ball bearings, self?priming, anti?backflow, stable performance and good sealing. 4、Flow direction of pump depends on connection mode of positive and negative stages of power supply, terminal can choose positive and negative stages at will. 5、Suitable for experiments, biochemical analysis, pharmaceuticals, fine chemicals, bioengineering, food, paper making, water treatment, etc. Specification： Condition: 100% Brand New Item Type: Peristaltic Pump Material: Engineering Plastics Weight: Approx. 80g / 2.8oz Motor Size: Approx. 33x32mm / 1.3x1.26in Pump Head Size: Approx. 53x23mm / 2.1x0.9in Center Distance Of Mounting Hole: 46mm / 1.8in Equipped Pump Tube (IDxOD): Inner Diameter: 2.2mm / 0.1in, Outer Diameter: 4.5mm / 0.2in Applicable Power Supply: DC 6V No-Load Current: ≤350mA Lift: ≥5m Suction Range: ≥5m Working Environment: Temperature 0-40℃, Relative Humidity <80% Flow Rate: 100ml/Min Pump Tube Life: >300 Hours (Working for 10 seconds and stop for 10 seconds) Motor Life: >800 Hours (Working for 10 seconds and stop for 10 seconds) Application: Experiments, biochemical analysis, pharmaceuticals, fine chemicals, bioengineering, pharmaceutical fillers, food, paper-making, ceramics, water treatment, environmental protection, powder and other fields Package List： 1 x Peristaltic Pump