The 5 gallons are cool but i have noticed they dont seal real great for long term storage, also once you break the factory seal they suck to try to move because as the lids get old they fall off easy so you have to carry upright, and not let them tip over. Had one tip in my volvo, a car pulled me over because there was just water pouring out of the car, 5 gallons loose in a car is a WHOLE lot.