Harris® FlashGuard® oxygen and fuel gas check valve pair pack with 9/16"-18 RH x 9/16"-18 LH connections each are used to mount on outlet of regulator for preventing dangerous reverse flow of gases. Check valves are CGA-E2 certified and UL listed. They both comply with OSHA regulations.
Features
Designed to mount on outlet of regulator to prevent dangerous reverse flow of gases
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 - individually tested and packaged immediately to assure cleanliness