Flowmeter with regulator: 1. Gas entrance pressure 15MPA, gas output pressure 0-2.5MPA (adjustable) 2. Flow rate: 0-10L/Min (adjustable) 3. two types of scales are available: 0-10L/min and 01-15L/min. 4. 3 types of humidifiers, the bodies of which are all made of high quality and transparent poly carbon material. 5. Pressure reducer is made of pure copper. 6. Pressure reducer connector can be made according customer&rsquos specific requirement. 7. Designed with a safety valve which opens in over-pressure conditions to reduce pressure.