Grainger part number:
1HUA7 -Quick Coupler Body, Industrial Sleeve Type Interchange, Steel Material, Zinc Plated Finish, Barb Hose Connection, Barb Size 3/8, Body Size 3/8 In, Max Air Flow 50 SCFM, Max Pressure 300 PSI, Temp Range -40 to 250 F, Buna-N Seals, For Use With Industrial Interchange...