Last fall at the National RV Trade Show, Norcold released the news of the Polar MaxTM18 refrigerator. This is a large 18 cubic foot RV refrigerator made to compete with the big residential models. I know the new Montana's hitting dealer lots have them. Does anyone know if the new Heartland Bighorn will have these as an option? Looking to order a new 3685 RL however the dealer is unaware if this is an option.