galvanized to PEX transitions

[soloncamper]

Hello,

I am replacing all of my existing galvanized plumbing with PEX. Do I need any special unions or can I use the brass threaded unions?

Thanks,

John

[nhmaster]

If you are replacing all your galvanized, what do you need unions for?

[kingsotall]

Might you mean couplings¿ I'd stick with the EP fittings throughout if at all possible.