Thanks Chris!
We are still researching. The Isotherm model we are looking at doesn't have dual voltage. Something I think we want(?)
Also, tips on insulation material would be helpful. Last season I added 1" foam to the outside of the icebox and to the inside of the teak bifold lid. The icebox on our Catalina shares a wall with the outer hull so we need to insulate on the inside of the cooler. We can see condensation on the outside of the boat on a hot day, so it would definitely help.
About West Marine's free shipping, they don't ship to Mexico so we end up driving 8 hrs to Phoenix for in-store pickup/exchange.
Wayne