Gallon (Winchester) bushel, originally a cylindrical measure of inches in diameter and 8 inches in depth. That made the dry gallon . The bushel, which like dry quart and pint still sees some use, was later defined to be 2150.42 cubic inches exactly, making its gallon exactly (). In previous centuries, there had been a corn gallon of around 271 to 272 cubic inches. The "wine", "fluid", or "liquid gallon" has been the standard US gallon since the early 19th century. The wine gallon, which some sources relate to the volume occupied by eight medieval merchant pounds of wine, was at
Keg UK and Ireland is quite different, whilst the couplers for kegs have been largely standardised to sankey, grundy and interbrew, a couple of others exist such as UEC and U-Type; however these are much less common. The kegs themselves are made from stainless steel or aluminium. The standard keg size is 11 imperial gallons (50 litre/88 imperial pints approx) and the vast majority of keg beers are supplied in this keg size. There are also smaller 30 liters (52.76 imperial pints) kegs usually reserved for more specialist and/or premium European beers. A number of manufacturers also produce 18 imperial gallon