I know the ARB Elements series of fridges are designed to withstand the abuse. I have a standard ARB fridge, mounted inside my Jeep fulltime. It's been poured on with rain numerous times when the top was off, and never an issue. However, I did read somewhere, maybe the manual, that advised against getting the standard fridge series wet-they may just be referring to the rear of the fridge where the compressor and fan is housed.