Pricing mentioned is for EA. Requires a minimum buy of 1 piece. Lincoln Style Couplers, 1/4 in (NPT) F; Hazmat=False; Features=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;Extra Large air passage insures greater air flow;Free swiveling action prevents curling or kinking of air hose;Positive action locking mechanism so coupler cannot be detached accidentally; StandardPack=5EA/CTN; CountryOfOrigin=US; Diameter=1 1/16 in; Flow at Pressure=52 SCFM at 100 psi; Hose Inside Diameter=1/4 inch, 1/4 in [Max]; Operating Pressure=250.0 psi [Max];