Anderson Metals Brass Tube Fitting, Tee, 1/2" Compression x 3/8" Side Male Pipe Tee with three openings for connecting and branching three tubes Compression connections on two ends and a male NPT connection on the other Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability Operating temperature range of -65 to +250 degrees F Three piece construction  nut, sleeve and body These fittings contain lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories.