Application It is suitable for use in dental clinics or at home. Specification Color: White Housing Material: PVC Hose Material: Plastic Valve Body Material: Copper Style: Modern Assembly Required: Yes Type: Weak Suction Control System: Air Control Water Bottle Capacity: 600ml/0.13gal/21Oz Air Pressure Input: 4-8kg/8.8-17lbs Air pressure Output: 0-4kg/0-8.8lbs Handpiece Air Pressure: 0.01-0.4Mpa Water Pressure Input: 2kg/4.4lbs Water Pressure Output: 0-2kg/0-4.4lbs Water Pressure: 0.1-0.25Mpa Number of Holes: 4 Gross Weight: 3.5kg/7.7lbs.