has a brush diaphragm pump for and liquid and is based on the original design of the volume pump. Driven by the motor rotation, by means of the eccentric wheel motor shaft, the drive rubber loop, the back and forth movement, the suction and discharge within the cavitation process through closed and open check valve to achieve suction and discharge of and liquid. can draw cold or hot water, which A pump that pumps hot water Large and quiet water flow Exquisite workmanship and durable structure Liquid (more suitable for liquids, Manufacturer: OSNIYAW