Dixon® Quick Disconnect Pneumatic Coupler, ARO, Series: M Series, 3/8 in Nominal, Quick Disconnect Coupler x FNPT End Style, 13/16 in Hex, 1.8 in Length, 300 psi Pressure, -40 to 250°F, Brass, Nickel Plated, 1.06 in OD Dixon® 2MM3-PL M Series ARO Quick Disconnect Pneumatic Coupler, 3/8 in Nominal, Quick Disconnect Coupler x FNPT, 300 psi Pressure, Brass