Quick Connects, Hose to Machine, QDB302 (M) Plug; QDB303 (F) Socket, Inert Gas

Features: Brass construction provides long service life | Non-interchangeable oxygen and fuel gas connectors | Instant closure on reverse flow check valves | Spring-loaded locking mechanism responds to fingertip action and achieves a gas-tight connection | Double seal socket connection on second seal | Color-coding for gas service type provides additional safety