Lincoln Style Couplers, 1/4 in (NPT) F

Features: Positive action locking mechanism so coupler cannot be detached accidentally | Extra large air passage insures greater air flow | Automatic air check valve shuts off air instantly when uncoupled, providing leak-proof seal | Corrosion-resistant steel plug and stainless steel check and check spring for long service life | Free swiveling action prevents curling or kinking of air hose