Review on Enhanced Safety with AGPTEK Oxygen Acetylene Flashback Arrestors Set Regulator by Faten Teller

First they need to be fitted to the burner on the regulator side, not the handle. Second, always test screw connections with soap before use. My first set of oxygen flame arrestors leaked at the unthreaded portion of the flame arrestor and failed. I sent it back for a replacement. The second oxygen soap has been tested well, but the oxygen pressure fluctuates up and down during use. It does not maintain a constant pressure. Recommend anyone who wants protection to consider the SMITH or Miller trademark. These are not high quality. I don't think Revain should make this an 'option product'.