A Type Brass Keg Coupler For Draft Beer System

A key element of any draft beer system is the keg coupler, a small but vital piece of equipment that connects the gas and beer lines to your keg. Pressurized gas (either CO2 or Nitrogen depending on the type of beer being dispensed) flows into the side of the keg coupler through an air line and the beer flows out through a beer line attached to the top.