Feature: 1. The water pump motor adopts a DC brushless motor, which works without sparks 2. Come with low starting current, possess high efficiency, stable and reliable operation 3. The product bring low power consumption, energy saving and environmental protection 4. Water pump motor shaft using stainless steel shaft, continuous service life of more than 20,000 hours 5. Engineering plastic material have excellent comprehensive performance, high rigidity, high mechanical strength Specification: Item Type: Mini DC Circulating Pump Model: Three-phase ZC-T40 Rated Voltage: DC24V Operating Voltage: DC9V~DC24V Working Current: 3.5A±10% Head: Approx. 15meter / 49.2ft ± 10% Flow Rate: 1320L/H±10% Noise: (40dB within 0.5meter) Fluid Temperature Range: 0℃ to 100℃ Waterproof Rating: IP68 Weight: 220 g / 7.8 oz(approx.) Material: Engineering Plastic Purpose: Booster pump Drive Mode: Electric SInlet Diameter: Approx. 20.3mm / 0.8in Outlet Diameter: Approx. 20.3mm / 0.8in Red line +, black line-. Package List: 1 x Mini DC Circulating Pump Note: 1. The water pump has no self‑priming ability, and the installation position should be lower than the horizontal plane2. The water pump can be used for diving at room temperature, but not for diving at high temperature3. The high temperature of the water pump cannot be used continuously for a long time. The water pump cannot be used idling without water4. It is better to install a filter on the inlet of the water pump pipeline5. The head is the vertical distance from the liquid level of the inlet to the outlet