It will be interesting to see where these might be more optimal in terms of dispensing. Two 5 gallons stacked are about 0.3" too tall in my 7 cu ft freezer which has a 2x8 collar. I can't quite fit four ball locks on my keezer floor, only 3. I can't say whether I could fit 3 of these new ones there. I wouldn't want to be stacking five gallons though in a tall keezer as would be needed for that if a 2x10 was used. Might be a game changer for refrigerators though as two 5 gallons stacked might allow a total of four. When I had a fridge for my kegs, I could only fit 2 on the floor. It is much easier to get kegs in and out of a refrigerator. I have a square cooler that my 3 gallons won't quite sit in, so maybe the 3 gallon would fit something like that as well. The difference in height between the 3 gallon of this new style vs Torpedos 2.5 gallon is 1.35". Maybe a big rectangular cooler could possibly fit two.