Single gallon jugs are available with 4 per case (4x1). These are stacked for our customers with 52 cases per pallet. This package size will primarily be used for retail shelves and smaller volume vehicles such as passenger car and light-duty diesel pickups. Our 2.5 gallon jugs are also available with 2 per case (2x1). These are stacked for our customers with 44 cases per pallet. This package also comes with a 16.5 inch flexible spout for easy dispensing. This package will be used primarily for emergencies, for those drivers who travel long distances and need reserves onboard their vehicles.