Dixon® Quick Disconnect Pneumatic Coupler, ARO, Series: M Series, 1/4 in Nominal, Quick Disconnect Coupler x Standard Hose Barb End Style, 13/16 in Hex, 1.91 in Length, 300 psi Pressure, -40 to 250°F, Brass, Nickel Plated, 1.06 in OD Dixon® 2MS2-PL M Series ARO Quick Disconnect Pneumatic Coupler, 1/4 in Nominal, Quick Disconnect Coupler x Standard Hose Barb, 300 psi Pressure, Brass