Anderson Metals Brass Tube Fitting, Elbow, 5/8" x 5/8" Compression 90-degree elbow for connecting two tubes at an angle Compression connection on both ends 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.