Compression Fitting Union, Application Air, Fitting Side A Connection Type Compression, Fitting Side B Connection Type Compression, Fitting Material Brass, Fitting Side A Tube Outer Diameter 1/4 in, Fitting Side B Tube Outer Diameter 1/4 in, Material Grade CA360, Maximum Operating Pressure 400 psi, Maximum Operating Temperature 250 Degrees F, Overall Length 2 in, Specific Fitting Shape Straight Union, Compatible Fitting Brands Parker Hannifin, System of Measurement Imperial