... Air pump 1.Application: Water dispenser, Massage armchair. 2.Working Voltage: DC 12. 0v / DC 24. 0v 3. good quality cheap Air ... 51 mmWith inside voltage-control switch, applied in Breast pump, Breast massage products, etc.AJK-B3201 DC 6V, ... LPM< 65 dBΦ 5 mm32*51*74 mmStrong pressure pump, widely used in Humidifier, medical equipment, etc.AJK- ... used in cleaning device, drinking device, etc. Air pump