... 3 mmΦ27*58 mmWidely used in Instruments equipment, medicine and chemicals field, small appliances etc ... Φ 7 mmΦ60*111 mmWidely used in massage equipment, health mechanical, etc. Especially for larger flow ... Φ60*111 mmWidely used in Vacuum packaging, beauty equipment etc.AJK-B3605 DC 12V,24V800mA/12V,550mA ... pressure pump, widely used in Humidifier, medical equipment, etc.AJK-B4006 DC 12V,24V300mA/12V,250mA ...