【2-Pack & Durable Material】The flashback arrestor is made of pure copper, which is sturdy and durable.
【Working Pressure】The maximum bearing pressure of oxygen check valve is 20bar/290PSI. The maximum bearing pressure of acetylene check valve is 1.5bar/21PSI.
【Specification】The thread specification of air inlet and air outlet of flashback arrestor is 9/16-18 B size.
【Check Valve】The one-way valve design allows the flashback arrestor to guarantee that gas can merely flow in one direction instead of back flow to prevent accidents.
【Note】For installation between the regulator and hoses. The acetylene arrestor in this set can also be used for Propane or Mapp gas.