1/2" C X FIP Dielectric Union

Lead-free design is suitable for all no-lead potable water
installations, in full compliance of all lead-free plumbing laws.
High-strength, galvanized forged steel construction make them ideal
for residential and commercial applications.
Designed to reduce stray current and galvanic corrosion where two
dissimilar metals are joined.
Self-aligning, non-conductive elastomer gasket and thermoplastic
insert create a positive seal and complete isolation between the
tubing and piping ends.