Abstract: A container device is used to distribute a preferably drinkable liquid, such as beer, wine, mineral water or juice, under pressure from a gas such as CO.sub.2. The container device includes a liquid container with a combined gas and liquid valve and a coupling head which may be detachably coupled with the gas and liquid valve for dispensing liquid from the liquid container and adding gas via a reduction valve from a reservoir of liquified gas in a high pressure container. Without a noticeable increase in overall volume of the container device, the high pressure container can hold and carry a sufficient amount of gas for emptying liquid from the liquid container.