High-Flow Peristaltic Pump Miniature Dosing Pump Peristaltic Hose Pump for Lab Aquarium Chemical Analysis It has been widely used in the fields of experiment, biochemical analysis, pharmacy, fine chemical industry, bioengineering, pharmaceutical filling, food, paper industry, ceramics, water treatment, environmental protections and so on. Features: Small dosing pumps have self-priming function, no valves or seals, convenient tube replacement, easy maintenance. Positive and negative support: swap the positive and negative power supplies, can reverse the pump-head. The dosing pump is generally used in the fields of experimentation, biochemical analysis, pharmaceuticals, fine chemistry, biotechnology. Motor efficient with a stable performance in output, reduced operation noise, used the clasp without screw for convenient disassembly and assembly. Stainless steel screws, rust corrosion resistance. The pump-head designed for easy disassembly, easy to wash and maintain. Specification: Type: A, B, C (optional) Material: metal Applicable power: direct current 12 voltage Working environment: 0-40 Relative humidity: