Dometic Cup Cooler
The Cup Cooler from Dometic is a topsides mini-mini fridge for a single beverage, like a koozie on steroids. It can replace most standard cup holders and will cool a standard water or soda bottle, or standard-sized can. The bottom insert is angled to keep bottles or cans of any size in contact with the cooling element, which run off house batteries. There are low-voltage and high-heat cutoffs
The Cup Cooler is flush-mounted into decks with a polished stainless steel trim ring. It is accented with two blue LED interior lights. A built-in drain eliminates condensation, rain, and water splashes.