Air Chief ARO speed quick-connect couplers interchange with both the ARO 210 and 310 design. Couplers shut-off when disconnected
Dixon Valve DC3842 Hose Barb, ARO Series, Standard, Connection: 1/4 Inch Female Coupler x 1/4 Inch Male Barbed Hose, Hex Size: 3/4 Inch, Hose Size: 1/4 Inch, Steel, Pressure: 300 psi, Temperature: 70 deg F, 2-5/8 Inch Length x 7/8 Inch Outer Diameter