Anderson Metals Brass Tube Fitting, Coupling, 1/4" Flare x 1/2" Female Pipe Coupling fitting for connecting two tubes with the same diameter Flared tube connection on one side and a female 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 Resists mechanical pullout for a more secure connection 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.