Anderson Metals Brass Tube Fitting, Cap, 3/16" Tube OD Two piece construction - nut and body Use with brass tubing Standard fittings use short nuts Resists mechanical pullout Easy to disassemble and can be reassembled many times with no effect on the seal 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.