Rheem 3/4" NPT x 3/4" Tube Dielectric Union

Connects copper pipe to threaded connection. Dielectric insulator helps prevent corrosion at junction between dissimilar metals. Fitting 1 Plumbing Size - 3/4" Fitting 1 Type - Sweat Fitting 2 NPT Size - 3/4" Fitting 2 Type - Pipe thread - Female Material - Brass / Zinc plated steel