Features: Designed with precisions workmanship, making it a replacement for old or damaged pumps. With stainless steel screws, rusts and corrosion resistant, can make sure the durability and stability of the product. The wheel frame have ball bearing, quiet and long service life. Includes a card slot to prevent deviation correction and pump damage. The peristaltic pump have a large flows rate of 500ml/min, which is suitable for various fluid transportation situations. Widely used with equipment, liquid transmission, liquid sampling analysis, watering, liquid filling. Specifications: Motor type: brushed gear reducer motor Pump head: Roller peristaltic pump Pulse: Three rollers, small pulsation Pump pipe material: Food grade silicone tube Pump Head material: PC Model: G928 Component: Stainless Steel Working voltage: 12V Rate of Flows: 500ml/min Size: about 5.8x5.8x9.2cm/2.28x2.28x3.62inch Pump tube size: 6.4x9.6mm (inner diameterxouter diameter) Package Includes: 1Pc Peristaltic Pump note: 1. Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 2. Regularly inspect and replace silicone tubing to maintain good sealing and elasticity. 3. Clean the pump head and piping to prevent dirt and sediment from affecting performances.