Decided to keep the ice box original. Too many are being taken out of these old campers and destroyed. The little fridges that fit are just too small to hold anything worth keeping cool. I like portable coolers, or the marine fridges (but this camper is too simple for something so sophisticated). This camper was made with simplicity in mind, so I will use the ice box from time to time with ice in it, or use it as a cupboard to hold food.