Union Tee, Application Air, Flammable Liquid, Freon, Inert Gases, Non-Combustible Gases, Fitting Side A Connection Type Flared, Fitting Side B Connection Type Flared, Flare Angle 45 Degrees , Fitting Side C Connection Type Flared, Fitting Material Brass, Fitting Side A Tube Outer Diameter 5/16 in, Fitting Side B Tube Outer Diameter 5/16 in, Fitting Side C Tube Outer Diameter 5/16 in, Fitting Thread Size 1/2-20, Hex Size 469/1000 in, Maximum Operating Temperature 250 Degrees F