Harris® FlashGuard® oxygen and fuel gas check valve pair pack with "A type 3/8" - 24 connections each are used in HVAC industry to mount on inlet of torch for preventing dangerous reverse flow of gases. Check valves are CGA-E2 certified and UL listed. They both comply with OSHA regulations.
Features
Torch mount reverse flow check valve
Prevents reverse flow hazards
High capacity - adequate for cutting steel and for operating the largest heating tips
Quality manufacture - valve spring made of stainless steel for long life
100% production tested and packaged immediately to assure cleanliness