Direct Draw Draft System / Draft System
Technical name for specialized equipment that is built specifically for dispensing keg beer from a temperature-controlled environment, through the use of compressed gas. Direct draw draft systems may be housed in a kegerator, walk-in cooler or converted refrigerator. Boil down all that fancy talk and you’ve got a system to keep your beer cold and get it into your glass.

Draft Beer
Any type of beer that is drawn from a large vessel. Kegs aren’t the only "vessels;" the term "draft beer" includes cask ale too.

Keg
Metal container used for storing and dispensing pressurized liquids (like beer, for example). Kegs come in a range of standard sizes (listed below). A single hole centered on the top of the keg and a two-way valve allows liquids (like beer) to be added and removed from the keg.

Keg Beer
Non-pasteurized beer that is dispensed from a keg through the use of gas pressure.

½ Keg
Holds 15.5 gallons or about 165 12-ounce bottles
Weighs 161-pounds, full
23 3/8" high with a 16" diameter

¼ Keg
Holds 7.75 gallons or about 82 12-ounce bottles
Weighs 87-pounds, full
13 7/8" high with a 16" diameter

1/6 Keg
Holds 5 gallons or about 54 12-ounce bottles
Weighs 55-pounds, full
23 3/8" high with an 11" diameter

Note: US keg dimensions may vary slightly by keg manufacturer and brewery. European kegs vary in size, but are similar to US sizes.