Fittings - AdaptersOxygen Nut For Barb FittingSKU: W-7 Nut for use with oxygen barbs. Interested in pricing and more information about this product? Quantity Add to cart Add to quote Related products Fittings - AdaptersCGA-580 Heliox Nipple View product Fittings - AdaptersCGA-346 Air Nut View product Fittings - Adapters#6JIC Nut View product