Straight Female Connector, Fitting Side A Connection Type Barbed, Fitting Side B Connection Type FNPT, Fitting Side B Pipe Size 1/4 in, Fitting Side A Tube Inner Diameter 1/8 in, Fitting Material Brass, Finish/Coating Nickel-Plated, Overall Length 29/32 in, Specific Fitting Shape Straight Adapter, Application Air, Maximum Operating Pressure 125 psi, Maximum Operating Temperature 160 Degrees F, Hex Size 11/16 in, Minimum Operating Temperature 20 Degrees F