Thought you were supposed to use a dielectric union on these:
Are you getting paid to promote these I have to agree though, shark bite fittings are the shiznit.^ That's another benefit of the braided flexible shark bite connections... They are a dielectric connection.
I dont bring anything good to this thread since the job is basically done, but......I had a Rinnai tankless in my last house, that thing was awesome. Endless hot water, once a year maintenance.