Feature: 1. Provide dedicated pump tube guide grooves to prevent damage caused by deviation of the pump tube. 2. Peristaltic pump, uses high‑quality stainless steel material, which is resistant to corrosion and wear. 3. Small size, light weight, mute, stable performance, can be installed on the work panel or bracket. 4. Suitable for OEM pump head, with flexible upper pressure block and adaptive different hoses. 5. Suitable for washing machine, dishwasher detergent delivery, analysis and test instrument sampling, ink delivery, ice cream extraction, beverage machine pump, kitchen equipment. Specification: Condition: 100% Brand New Item Type: Peristaltic Pump Material: Stainless Steel Motor Type: 2-phase 4-wire 42 stepper motor (line sequence A+A-B+B-, need driver to drive, not direct power supply) Motor Voltage: 3-50V Motor Step Angle: 1.8° Drive Current Setting: Continuous operation is recommended <1A, short-term operation is recommended <1A, the current is as small as possible when the torques are sufficient to reduce heat generation Maximum Power: 20W Minimum Power: 5W Stepper Motor Speed: Recommended speed is lower than 500rpm (stepper motor speed is determined by the control circuit) Weight: Approx. 418g / 14.7oz Pump Head Size: Approx. 6.6x5.6x2.4cm / 2.6x2.2x0.9in Pump Body Size: Approx. 4.1x4.1x3.7cm / 1.6x1.6x1.5in Pump Tube Replacement: 1. Loosen the adjusting nut 2. Open the pressure block 3. Install the pump tube 4. Depress the pressure block and snap into the adjusting nut 5. Adjust the nut to a suitable tightness (the adjustment nut is too loose and the water will not be pumped. The tighter the adjustment nut, the higher the lift and the shorter the pump tube life, so it can be adjusted to the right.) . Package List: 1 x Peristaltic Pump Note: 1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3. The middle section within the clamps at both ends of the pump tube should not be too long or too short. Too long the tube is easy to run off, and too short is easy to wear.4. When using the peristaltic pump, it is forbidden to run idling for a long time. Theinhaled solid particles should be less than 200 meshes, otherwise a filter should beinstalled.5. Please note that the new type and old type of this product will be sent randomly,and make sure you will not mind before ordering.