Description:Gas Flowmeter Oxygen Pressure Reducing Regulator Valve is made of metal.Standard production workshop, with gas cylinder pressure display, pressure relief valve and humidification bottle interface, safe and hygienic, durable.Designed with a metal core and a copper filter those can filter impurities and clean the gas for your peace of mind.Reasonable structure, with strong operation, strong versatility and strong interchangeability.The oxygen inhaler humidification bottle has a muffler to reduce noise.Specification:Material: Copper+Others.Exhaust pressure of safety valve: 0.17±0.05Mpa.Flow Range: 1~15L/Min.Input/Output: 0.4/0.5Mpa.Size Chart:Size: 7x7x25cm / 2.76x2.76x9.84inch.Package Includes:1 Piece Oxygen Flowmeter.Note:Color might be slightly different due to the color calibration of each individual monitor.Please allow slightly measuring deviation due to manual measurement.