Tipper, Re the fridge: The one I currently have is in a Coleman, it does not cool particularly well on 12 volt, it does best on LP for cool down. 120 VAC is the next choice. Bill, my thinking on 2 way fridges is that some of the newer TT I have seen are coming with an automatic 2 way. 120 VAC and LP. Possibly something to consider if you need replacement. However I am not a fan of towing with the LP turned on( a whole 'nother subject in it's self) I suppose you could isolate the converter and fridge circuit and run a separate plug for them. I agree that the Marine Plugs are expensive!

Aaron