Keg Types for Kegerators: Which One Fits Your Setup?

Keg size names and what they mean on a listing

Half barrel, quarter barrel and sixth barrel are the keg size names that appear in kegerator titles and bullet lists. Each name is a fraction of a barrel, and each names a different class of cabinet opening: a listing that accepts a half barrel has a larger cabinet than one built for a sixth barrel. The names tell you the acceptance class, not a measured volume, because sellers usually do not state a measurement on the title.

A mini keg and a growler are separate size words. A mini keg names a small keg for compact cabinets and countertop units. A growler names a takeaway container, and the Brewers Association Draught Beer Quality Manual covers growlers as part of draught system guidance. Read the bullet list to see which size words the seller states, and treat any size word left out of the list as a question. The main kegerator guide explains how size words sit inside a full listing.

What 'holds one keg' and 'holds two kegs' means

Many listings state capacity as 'holds one keg' or 'holds two kegs'. That sentence means the cabinet can hold that many common kegs at the same time. It does not name the keg size, so you still have to match the stated keg names to the cabinet. A cabinet that holds two kegs is a natural partner for two taps, because each tap connects to one keg.

A 'holds one keg' listing also has to name which keg it holds. The same cabinet may be described for a half barrel or for a sixth barrel in different lines. The word 'keg' alone is a general term; the exact size name is the detail to look for. The keg size compatibility article compares acceptance terms across listings.

Matching keg sizes to the tower

The tower is the part that carries the taps on top of the cabinet. A single tap tower connects one keg at a time, a dual tap tower connects two, and a triple or four tap tower connects three or four. The number of taps is a planning decision: one beer or several. Read the title for the tap count, then read the bullet list for the keg names.

For a first kegerator at a home bar, a single tap keeps the reading simple. For a shared space, dual tap or triple tap listings make sense when you want more than one keg connected at once. The single tap guide and the dual tap guide compare listings on stated details, and the tower tap count article explains tower terms.

Reading the coupler on a listing

The coupler is the part that connects a keg to the line inside the kegerator. Keg valve types differ by maker and by region, and coupler system names such as D-system and S-system appear on listings. The coupler must match the keg valve, so the listing should name the system it includes. The coupler type article compares those names.

Listings may bundle a regulator and a tank with the coupler, and they may state them as included or sold separately. Read the included components list before you buy, and treat any part that is not listed as a separate purchase. What the listing does not state about the coupler is a question for the seller.

Mini keg, growler and other capacity words

A mini keg names a small keg that fits compact cabinets and countertop units. A growler names a takeaway container, not a keg, and the Draught Beer Quality Manual treats growlers under draught system guidance. A title cannot state capacity in detail: titles carry the size name, while the bullet list carries the acceptance list. The half barrel versus sixth barrel article shows how two size names differ in a title.

Full size and undercounter are cabinet words, not keg words. A full size cabinet refers to the refrigerator class, and a 15-inch or 24-inch cabinet name refers to width. The keg names and the cabinet names are separate lines of detail in a listing. The full size kegerator guide compares listings that carry the full size cabinet name.

Choosing the keg size for your space

The cabinet width and the unit type frame the keg choice. A 15-inch undercounter unit is sized for a narrow kitchen run and usually pairs with smaller keg names. A 24-inch full size cabinet is the common size on listings and pairs with half barrel and quarter barrel names. A wide commercial cabinet adds room for more kegs and more taps.

For a small home bar, a single keg on a single tap is the direct choice. For a shared house or a small venue, a wider cabinet with two or more taps lets more than one keg stay connected. Compare the 15 inch guide, the 24 inch guide, the undercounter guide and the commercial guide to match the cabinet to the keg names you plan to use.

What to pick for your situation

Questions

What does half barrel mean on a kegerator listing?

Half barrel is a keg size name that appears in titles and bullet lists. It names the acceptance class for the cabinet, not a measured volume. Match it to the coupler system the listing includes.

What does 'holds one keg' mean?

It means the cabinet fits one common keg at a time. You still need the size name, because a listing may hold one half barrel or one sixth barrel depending on the line.

How many kegs can a single tap connect at once?

One. Each tap connects to one keg, so a single tap listing connects one keg at a time, a dual tap connects two, and a triple or four tap connects three or four.

Does the coupler type matter when reading a listing?

Yes. The coupler must match the keg valve type, and coupler system names such as D-system and S-system appear on listings. Read which system is included.

What is a mini keg on a listing?

A mini keg is a small keg size word for compact cabinets and countertop units. It is one of several size names, alongside half barrel, quarter barrel and sixth barrel.

What can a title not say about keg capacity?

A title names the size class and the tap count, but it cannot state the full acceptance list. Read the bullet list for the exact keg names and the included components.