Flashback Arrestor Victor type of flashback arrestor 1. For gas regulator; 2. Input Oxygen Max pressure: 15BAR/210Psi Input Acetylene Max pressure: 1.5Bar/21Psi 3.Full and good brass. 4.Built-In Reverse Flow Check Valves 5. Designed to Prevent Flashback from Hose to Regulator 6. For Use with MOST Oxy-Fuel Welding & Cutting Regulators 7. Greater Flow than Competitive Models