This lead-free brass ASTM F1960 adapter is used to make a straight transition between copper pipe and PERT tubing. This 1/2 in male sweat by 1/2 in ASTM F1960 adapter is made of lead-free brass and must be joined to the PERT tubing using a ASTM F1960 PEX sleeve to form a fast, reliable and permanent seal. It is recommended that a specialized tool be used to make the connection.