Eaton Weatherhead 42X6 Brass CA360 SAE 45 Degree Flare, Union, 3/8" SAE Male (Pack of 5) Joins two 3/8" SAE 45-degree female swivel fittings Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability For use with LP and natural gas, refrigeration, and hydraulic applications