Feature: 1. Adjustable peristaltic pump, the flow rate of the peristaltic pump can be adjusted through the knob 2. The one water pump can meet a variety of flow requirements, greatly reducing costs 3. The pump head design is easy and simple to disassemble, convenient to clean and maintain 4. Can be widely used in experiments, biochemical analysis, pharmaceuticals, fine chemicals, biotechnology, pharmaceuticals, products, ceramics, water treatment, environmental protection and other fields 5. High quality material can make sure the durability and stability of the product, with stepless speed regulation Spec: Item Type: Peristaltic Pump Model: G928A Input Voltage: 100-240VAC Output Voltage: 24V/1A DC Motor: 12V Number of Pump Heads: 1 (single pump head) Pulsation: 3-rollers, small pulsation Flow Rate Range (water): 114ml/min-500ml/min Pump Tube Material: Food grade vulcanized silicone tube Pump Tube Size: Approx. 6.4 x 9.6mm / 0.3 x 0.4in(inner diameter x outer diameter) Pump Head Material: Engineering plastics Speed Regulation Type: Stepless speed regulation Size: Approx. 124 x 100 x 65mm / 4.9 x 3.9 x 2.6in Package List: 1 x Peristaltic Pump 1 x Plug 1 x 1 Meter Pump Tube 1 x User Manual