Features: Measuring range: 0-25MPa, rated flow: 1-10 m3-/h. Made of high quality- zinc alloy, durable, sturdy- & long for time servcie. With large handle switch, anti-slip design, more labor-saving. When the inlet pressure and the outlet flow change, the pressure can be reduced-, displayed and stabilized- to ensure the stability of the outlet pressure. The flow- meter regulator looks beautiful. The pressure gauge has clear scale, accurate reading, small error. Specifications: Material: zinc alloy Size: approx 13.5x16.5x7.5cm/5.3x6.5x3-inch Measuring range: 0-25MPa Rated flow: 1-10 m3-/h Input Pressure: 15mpa Operating Pressure: 0.3mpa Flow rate: 25 L/H Inlet Thread: 5/8" Outlet Thread: M14x1.5 Package Includes: 1x CO2- Flowmeter note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.