"B" Size to NPT Oxygen Adapter
||9/16"-18 RH Female Swivel Nut
||1/4" NPT Female
"B" Size Oxygen Female to 1/4" NPT Female Adapter Fitting.
Note: This is a compresion type coupler with a machined brass seating face on each end. Do not use any pipe dope, teflon tape or other type products.