Item Name: Blow More Glass Tools - Flashback Arrestor - Reg. to Hose SKU: ABR-BMGT-FBA Description: This is a matched set of two flashback arrestors designed for a lampworking torch fuel system. Each arrestor is a compact, in-line safety device that installs between a gas regulator and its hose, creating a barrier that helps stop a flame front from traveling backward into the hose, regulator, or gas supply. This set includes one arrestor for oxygen and one arrestor for fuel gas, and they are sold only as a set. How it is used: Install one flashback arrestor on the oxygen side and one on the fuel side between your regulators and hoses. They are used any time you are running a torch to add an important layer of protection against flashback conditions, helping reduce the risk of fire or explosion in the event of a flame traveling back through the line. This is a standard safety upgrade for new torch setups and for anyone refreshing older regulator and hose assemblies.