Electronic rust control module. Science or Scam?

340duster said
I cant say if they work or not, but you can buy one from Canadian Tire for only $300.
http://www.canadiantire.ca/en/pdp/c...-protection-system-0477905p.html#.UolRNhRraM8

Can we hook it up to our old cars with a reverse osmosis water treatment system and make the rust go away and replaced with new sheet metal???

This is what we need to restore our cars....