Draught Beer Basics
all about couplers
A keg coupler connects the Carbon Dioxide gas line (CO2) to the keg. The compressed gas powers
the coupler to draw out the beer from the keg. Dierent countries use dierent style couplers, so it
is crucial to have the right coupler for the specic brand you are going to be dispensing.
Beer brand country type
AMSTEL Holland S*
BECK’S Ireland D*
DOS EQUIS Mexico D*
GROLSCH Holland G
GUINNESS STOUT Ireland U
HACKERPSCHORR Germany A
HARP Ireland U
HEINEKEN Holland S*
HOEGAARDEN Holland A
LABATT BLUE Canada D*
Beer brand country type
MODELO Mexico D*
NEWCASTLE England S*
PERONI Italy D*
PILSNER URQUELL Czech S*
SMITHWICK’S Ireland U
SPATEN Germany A
STELLA ARTOIS Belgium D*
STRONGBOW CIDER England S*
TENNANT’S Scotland G
WARSTEINER Germany A
D System lo-boy
keg coupler
D System stAndard
keg coupler
2-⁄”
3-⁄”
Because of height constraints, you must use a Lo-
boy coupler for 1/6 barrels and slim 1/4 barrels.
Lo-boys are available in D and S Series, all other
series must use a standard keg coupler, therefore,
are only able to be used with short 1/4 barrels.
Please note - Macro brands like Miller and
Budweiser use D System keg couplers. Always
verify the coupler requirement for beers you wish
to dispense prior to purchasing.
*Perlick Lo-Boy Keg Coupler Available