Joining galvanized and copper plumbing - Fine Homebuilding
Transitioning from galvanized to copper. This is how the plumber did it. A friend is concerned he didn't use a dielectric coupler. Is this sufficient? : r/Plumbing
Is It Safe To Drink From Galvanized Pipes?
Dielectrical Couplings for plumbing -- Galvanized to Copper connections
EZ-FLO 1-1/4-in x 1/2-in Compression Coupling Fitting in the Brass Fittings department at Lowes.com