The DC 3V-5V Mini Peristaltic Dosing Pump is a compact and efficient solution for your liquid transfer needs. Weighing just 47g, this micro self-priming pump is perfect for use in aquariums and laboratory applications. With a rated voltage of 3.7V and a versatile operating range of 2V-5V, it is designed for optimal performance. The pump features a self-priming capability and can easily reverse the flow direction by changing the motor's polarity, making it user-friendly and adaptable. Its high-pressure performance ensures precise liquid metering, while the CE certification guarantees reliability and safety for all users.