Product Features Dual Pump Heads: Effortlessly replaceable, allowing the option to operate with just one pump if desired. 3 Rollers Design: Engineered with a food-grade pump featuring a three-wheel structure for moderate pulsation, precise flow control, minimal wear, and reduced noise. Single Button Design: Easy-to-use interface with convenient flow adjustment. Clearly marked speed settings at 0%, 20%, 40%, 60%, 80%, and 100%. Wide Range of Applications: Versatile use in experimental, scientific research, and production fields such as medical, agricultural, cosmetic, and chemical industries. Tube Sizes Available: Compatible with different tube sizes: 1mmx3mm (G1028-1), 2mmx4mm (G1028-2), 3mmx5mm (G1028-3). Specification Adapter: 24V/1A Motor Voltage: 12V Number of Pump Heads: 2 (dual pump heads) Pulsation: 3 rollers, small pulsation Tube Size (IDxOD): 1mmx3mm (G1028-1); 2mmx4mm (G1028-2); 3mmx5mm (G1028-3) (Optional) Pump Head Material: Engineering plastic Pump Tube Material: Food-grade platinum vulcanized silicone tube Flow Rate Range (using water for testing): 5 ml/min - 20 ml/min (1x3mm tubing) 7 ml/min - 57 ml/min (2x4mm tubing) 15 ml/min - 117 ml/min (3x5mm tubing) Packing List 1 x Peristaltic Pump 1 x Extension Green Tube (1 meter) 1 x Adapter 1 x User Manual