Weldmark Flashback Arrestor (Torch Set) by Superior Products (Smith H743)

•Built-in check valve prevents reverse flow

•Fits all 9/16"-18, "B" size regulators and torches

•100% factory flame and leak tested

•Made in the USA by Superior Products (makes Smith Equipment product)

•UL approved

•Flashback arrestors may be installed on many types of oxygen/fuel gas apparatus such as the outlets or inlets of torches. Flashback arrestors are designed with an internal element and check valve combination to extinguish a flame front inside the hose line in the event mixed gases ignite.