Buoy Pressure Regulator Type Oxygen Inhaler Meter Pressure Reducing Valve OOTDTY Features: Oxygen Pressure Relieving Regulator Uses Piston Type Pressure Reducing Valve Design With Small Volume. The pressure gauge uses high-quality glass, thick and non-slip design, clear scale and high sensitivity. , The pressure reducing valve is made of brass, with high strength, wear resistance, and more secure sealing. Oxygen flow meters are suitable for home, outdoor, plateau and oxygen supply system to ensure oxygen inhalation. Just connect it to an oxygen cylinder to adjust the oxygen flow without worrying about wasting oxygen flow due to oxygen flowing too fast. It regulates the variable inlet pressure to a stable outlet pressure as much as possible. Specification: Material: Metal Size: 14.7cm/ 5.78 inchPackage Included: 1x Oxygen Reducing ValveNote: please allow 1-3cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.