UK Barrels
A UK barrel is 36 imperial gallons (not to be confused with American gallons), about 163.659 liters or 0.163659 cubic meters. It is based on the traditional wine barrel used in the United Kingdom.
US liquid pints
A US liquid pint is a unit of volume in the United States to measure liquids. One US liquid pint is an eight of a US liquid gallon and about 0.473176 liters.