Fittings - Adapters1/2″ x O2 Oxygen AdapterSKU: 7ADR 1/2″ x O2 brass oxygen adapter. Interested in pricing and more information on this product? Add to quote Related products Fittings - Adapters5/8″ Barb x 5/8″ Barb Hose Splice View product Fittings - AdaptersCGA-346 Air Nut View product Fittings - AdaptersOxygen Barb End For 1/4″ Hose View product