Features: Micro dc has diaphragm pump brush, gas and liquid, it is based on the pump size original design. It is powered by motor rotation, by eccentric wheel motor shaft, rubber loop drive, with pistons reciprocating motion, suction and pressing inside the cavity formation of action, through the check valve closed, open, so as to achieve suction and discharge of gas and liquid. It can return cold water or hot water, which can reach the water flow of 1.3-1.7l/min-but it can also take more time. Pump that hot water pump; Large and quiet water flow; Excellent workmanship and durability of the structure; Gas and Liquid (more suitable for liquid) Specifications:Working Voltage: DC 12 VRuch: 1.3L-1.7L/Min (Approx.) Size: 8.4cm (3.31in), Width: 2.4cm (0.94in)Quantity: 1 Pc Note:Please allow 1-3mm error due to manual measurement. Pls make sure you do not mind before biddingDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Contents: (without retail package) 1 Pc x Mini Pump