Draft Beer

Draft Beer 101: Beer and Air Lines

When you think about the parts of a draft beer dispensing system or kegerator, you probably get certain images in your head. You might picture the tower, the faucet, or the tap handle. Or maybe you’re a real pro and your mind’s eye goes inside the cabinet, envisioning the regulator, the CO2 tank, the coupler, or the keg itself.

Obviously, these are all mandatory pieces of equipment that must work together to help you pour perfectly every time. But wait one second...isn’t there something missing from this list? Some integral part of any draft beer dispensing system that often gets overlooked? You’re darn right there is: beer and air lines!

beer air lines keg How could you forget about beer and air lines?!?

Over the years that KegWorks has been helping people set up systems designed to help them enjoy fresh draft beer in their homes and commercial establishments, we’ve come to discover that beer and air lines are the most overlooked part of any draft beer dispensing system.

We know what you’re thinking: “Oh those plastic tubes? Who cares about them?” Well, even though they might seem unexciting, taking proper care of your beer and air lines is an absolutely essential part of successful dispensing. To help make that easier than ever, we figured it might be time to shine a spotlight on the most taken-for-granted part of your kegerator.

Beer Line

beer and air line kegerator Beer line is available in both ⅜-inch and 3/16-inch inside diameters.

At KegWorks, all of our beer line is made from food-grade, PVC vinyl that’s approved by the FDA, USDA, USP Class VI, NSF, and UL. It’s specially engineered to prevent rotting, cracking, drying out, or swelling, so even with regular use, you can rest assured that it will continue to get the job done.

To match the exact needs of your draft dispensing system, we offer beer line in both ⅜-inch and 3/16-inch inside diameters. For most home dispensing setups, 3/16-inch is a fine choice, but in a commercial setup with a long draw, ⅜-inch helps provide a quicker, more efficient flow rate with less required pressure.

Beer line is available by the foot, in a 100-foot coil, or in a pre-cut 5-foot jumper (a perfect length for the majority of home dispensing/kegerator situations).

Air Line

beer air line kegerator Air line is available in 5/16-inch inside diameter and in red and clear vinyl.

KegWorks air lines are made from the same material as our beer lines. Again, this special food-grade PVC vinyl provides market-leading durability for years of dependable dispensing.

Air line is only available in 5/16-inch inside diameter because that size is designed to provide a proper amount of gas pressure to help power dispensing from virtually any draft beer system.

We offer air line in both clear and red vinyl. Many people opt for the red vinyl to help easily distinguish between the air and beer lines, but others prefer to utilize clear tubing for both beer and air in order to better identify and troubleshoot any potential blockages or other issues.

Like beer line, we sell air line by the foot, in a 100-foot coil (both clear and red), and in pre-assembled jumpers.

Quick Disconnects

beer air line quick disconnect Quick disconnects make keg management a breeze.

If you are regularly changing the beer you have on tap, it’s a wise move to attach quick disconnects to your beer and air line. These special attachments make it easy to switch out the coupler or air tank for hassle-free management of your keg and its frosty contents.


Both your beer and air lines are very durable pieces of draft beer dispensing equipment. The PVC vinyl is specially designed to withstand just about everything you throw at it, but there are a couple of things you’ll want to pay attention to.

  • First off, both your beer and air line need to remain unkinked. If there are unnatural bends or creases in the line, it will drastically impact the system’s ability to pour correctly.
  • Second, for both reliable dispensing and to ensure the freshest beer possible, you should clean your beer lines between every keg or at least once every few weeks. We sell a variety of specialized beer line cleaning kits that make this job as easy as possible.

That’s it! Now you know everything you could ever want to know about our beer and air lines. Of course, if you have any questions, please feel free to leave a comment or shoot us an email at, and we’ll make sure you get the info you need.


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