Bulk Keg Orings and Keg Parts Reference

homebrew keg parts

You can save a bunch by buying homebrew keg o-rings in bulk.  Here are some part numbers, background and tips on keg gaskets along with some part numbers and sources for additional keg repair parts.

See More About O-Rings in our Keg Rebuild Post – Jump To: Replacing O-Rings

Silicone vs Buna-N

Silicone is softer than Buna-N.  Silicone also remains softer at cool temperatures.  Because of this, silicone is supposed to provide a better seal.

If you’re going to try to save money by using Buna-N, I suggest doing so only on the liquid side. Beer is… visible. You cannot see leaking CO2, so silicone is a better choice to get the best seal possible.

A Note on Gas O-rings I am quick to replace gas o-rings.  A leak at the post is particularly difficult to test for.  I have lost multiple tanks of CO2 before learning this lesson.  In bulk, these are cheap, replace them liberally.  My suggestion is every other keg.


EPDM is a favorite of many pro brewers for certain applications. It has some real advantages over silicone. One of the big ones is a much lower permeability. That means they’re less porous andmore resistant to absorbing off-smells and off-flavors.

Until now, these have not been available to homebrewers, or at least easily available. Valuebrew now offers these in bulk quantities at a reasonable price, albeit more expensive than silicone and Buna-N.

Keg Dip Tube O-rings

As noted above, I recommend replacing your gas post o-rings frequently.  My suggestion is every other batch.

Other Options – correct size, but not food grade

Keg Post O-Rings

As noted above, I recommend replacing your gas post o-rings frequently.  My suggestion is every other batch.

BLUE Food Safe, SiliconeKeg Post O-Rings – Food Safe Silicone – in BLUE – identical in function but available in custom blue.  The idea is to color code your keg posts for quick identification.  Blue = Beer.



GREEN Food Safe, SiliconeKeg Post O-Rings – Food Safe Silicone – in GREEN – identical in function but available in custom green.  The idea is to color code your keg posts for quick identification.  Green = Gas.



Other Options – correct size, but not food grade

Keg Lid O-Rings

Other Options – correct size, but not food grade

Leaky Lid-Orings

William’s Brewing Oversize Keg Lid O-ring is slightly over-sized and made from a softer rubber.  It’s designed to help you achieve an airtight seal for leaky ball and pin lock keg lids.

Internal Ball Lock Quick Disconnect O-Rings

Dash 013 o-rings are not OEM internal ball lock QD gaskets, but in my experience they have fit in all the QDs that I’ve tried.  Your experience may vary.  Check out my post on the subject including some photos – See: CMBecker Ball Lock QDs + Replacement O-Rings

Other Options – correct size, but not food grade

If you’re looking for CM Becker OEM replacement parts, check out Keg Connection.  They have a nice diagram that shows all the parts and pieces – (gaskets, spring, stem and caps) for both ball lock and pin lock QDs.  See: Disconnect Parts List at Keg Connection

Ball Lock Keg O-Rings vs Pin Lock Keg O-Rings – are they the same?

pin lock oringsPin Lock Post O-Ring on Left, Ball Lock Post O-Ring on Right

Standard pin locks and ball locks use identical dip tube o-rings and lid o-rings

Post o-rings are a different story.  Standard pin lock keg post o-rings are slightly larger than ball lock keg post o-rings.

It may be difficult to see in these photos, but the left side shows a pin lock post with a ball lock o-ring installed on it.  The right side shows a pin lock post with the pin lock o-ring installed on it.  The pin lock o-ring extends out just a little bit further than the ball lock o-ring.  The ball lock o-ring is nearly flush the the lip on the post.  That small amount is the difference between the two o-rings.

I recommend stocking up on food grade spare o-rings.  This is especially true for post o-rings.  I recommend you change those liberally.  See: Why Won’t My Homebrew Carbonate? Fixing Beer Carbonation Problems – for more information on that.

Buying in bulk means you save money and you’ll have spares when you need them

Food Safe Replacement O-RingsMore Info

Related: What’s the Difference Between Ball Lock Kegs and Pin Lock Kegs

Via our Keg Rebuild Post – Jump To: Replacing O-Rings – Jump To: Pin Lock Section

Universal Poppet O-Rings

Size Dash 008 fit all styles of Universal Poppet that I have tested.  Since universal poppets can vary slightly between manufacturers, I cannot guarantee they will work with your poppet.

See: Installing and Adjusting Universal Poppets via our Keg Rebuild Post

Universal Poppets – 304 Stainless + Food Grade Silicone! & Reliable O-Ring Replacements

universal poppetsValuebrew has released a 304 Stainless Steel + Food Grade Silicone Universal Poppet option!

I’ve long advocated for tossing OEM o-rings. I’m excited that there’s finally there’s an option that comes with quality o-rings made from the right materials out of the box! Beyond that, Valuebrew has pledged to always carry replacement o-rings, so you’ll always have a source when the time comes for replacements.

Food Safe Materials for Keg O-Rings?

Most of the o-ring part numbers that are linked in this post are not specifically marketed for food use or as food safe.

In my experience, it’s extremely difficult to find offerings that claim to be safe for food contact.  Maybe some of the o-rings that are available are food safe, but very few are actually labeled as such.

But why?  One possible reason… they aren’t food safe.  Beyond that, one industry insider I spoke with said suppliers have a potential problem with fulfillment.  Since many options and materials are available, It’s difficult for some distributors or sellers to guarantee you’re getting a food safe option.

  • Just because an o-ring is marketed for use in a keg doesn’t automatically mean that the materials and production processes used are food safe.
  •  If you think about it from a random supplier or manufacturer’s perspective… they don’t know what you’re putting in your keg, maybe it’s not even food.  The problem that we, as homebrewers, have is is… beer is food and meant for human consumption.
  • You cannot say all o-rings made from [fill in material here] are food safe.  Certain quality standards and processes are required.

There are some food safe options.  One notable supplier features all food safe o-ring offerings.

When I know that something is sold as food safe, I’ve labeled it as such in this reference.

Generally speaking, food safe o-rings may cost a little more, but, we’re, generally, only talking a few cents per o-ring.  It’s worth it.

If you’re using your keg for anything food related… My recommendation is to purchase o-rings made out of material safe for food contact.

Check each product page for specifications and application recommendations.  These can change.  Contact manufacturers with questions about suitability for a particular application.

Shelf Life and When Should I Replace My Keg O-Rings?

Depending on material, keg o-rings have a shelf life.  At some point, some materials may become brittle.  I can’t tell you exactly what that time frame is.  The best way to know is… are your o-rings brittle.  If so, they’ve reached their shelf life.  This is a good argument for buying smaller quantities more often.

When Should I Replace Keg O-Rings

Beyond shelf life, o-rings wear out from use – compression and abrasion.  Some people change o-rings every time they keg.  I think a good rule of thumb is yearly, for all except gas post and gas dip tube.  Because leaks on the gas post o-ring are difficult to detect, I suggest replacing these every other beer.  Gas dip tube o-ring leaks are easier to detect, but my recommendation is to change these every other beer along with the gas post o-ring.  A leak at either one of these points is invisible and has frustrating consequences… heading to your CO2 source to swap or fill a tank.  Better safe than sorry.

Special thanks to HBF Reader Tom his contributions to this section.  Tom is the person by brew-control brand items on Amazon

Other Keg and Kegerator Rebuild & Replacement Parts

Keg Repair Parts

  • Universal Poppets – I use universal-type poppets exclusively when rebuilding kegs. Tip: In my experience, universal poppets fit the vast majority of kegs without issue.  I have had a couple kegs that ended up being a bit too tight with these.  It’s an easy fix.  Use a pair of wire cutters or Nipper Pliers to trim the universal poppet.  I suggest taking off about half of a coil and testing.  You want the QD to slide on easily and for it to reliably hold pressure when the QD is off.  Taking off a half of a coil and testing helps you make sure you don’t end up making the poppet too loose. Related: Universal Poppet Tips and Tricks
  • Keg Lid Feet – Bad or missing keg lid feet can cause keg lids to seal improperly – AIHWilliam’s Brewingsearch Amazon for “keg lid feet” to compare additional offerings
  • Keg Lid with Hang Tab – from William’s Brewing. includes an interior hang tab for hanging dry hop bags.  If you you need to replace keg lids – might as well get a hang tab
  • Replacement Keg PRV Valves via AIH – also search Amazon for “keg lid PRV valve” – check compatibility with your keg
  • Replacement Keg Lid (includes PRV) – ball lock style lid – also search Amazon for “homebrew keg lid” 
  • Replacement Pin Lock Style Lid (no PRV)TIp: If you’re replacing lids on pin lock kegs, I suggest using ball lock style lids.  Those generally include manual PRV valves that making venting your keg a whole lot easier.  Standard ball lock style keg lids fit on standard pin lock kegs.
  • Pressure Relief Valve Ring – check compatibility with your keg
  • Ball Lock QD Repair Kit – via Adventures in Homebrewing
  • CM Becker Brand Pin and Ball Lock Quick Disconnect Repair Parts – Disconnect Parts List via Keg Connection
  • Gas Dip Tube
  • Liquid Dip Tube – Straight – for Firestone and Cornelius
  • Curved Liquid Dip Tube
  • Pin Lock Kegs require a special socket to remove the post {See: What’s the Difference Between Ball Lock Kegs and Pin Lock Kegs].  Those can be relatively pricey.  This eBay offering is the best everyday value I’m aware of for one of those sockets.
  • Keg parts pages – finding compatible parts for PRV valves and post bodies can be tricky.  Here are parts landing pages for some of the homebrew shops I recommend – Adventures in Homebrewing, Keg Connection – huge selection of homebrew and commercial keg partsMoreBeer, William’s Brewing
  • Racetrack style kegs – standard kegs, both pin lock and ball lock are… standard.  Some parts on those are interchangeable – dip tubes, o-rings, universal poppets.  The big outlier are… racetrack style ball locks.  These perform the exact same function but some of the parts are not what I would call standard – the lids are more oval and the dip tubes and other parts are different.  As of this posting, Adventures in Homebrewing is the place to get hard to find racetrack keg parts.  These used to be very hard to find.  AIH has scooped up a lot of what was left and had other parts manufactured.  – Search racetrack at AIH

Faucet Repair Parts and Resources

If You’re Looking to Upgrade Your Kegerator…

In my opinion… Kegland’s DuoTight System deserves a hard look


We’ve got loads of Draft and Kegerator related reviews!  Check out the lineup…

Odds and Ends

  • Kegland Flow Control Ball Lock Liquid QDs – at William’s Brewing & MoreBeer – These ball lock QDs are made from stainless steel.  Beyond that they also have a unique feature that allows you to change the resistance that the QD is exerting on your beer.  That means you can dial in flow right at the QD.  That allows you to make modifications for lower or higher carbonation levels without changing tubing lengths.
  • Universal Cornelius Posts – via William’s Brewing – these posts work with both gas AND liquid QDs.  Make sure your keg threads are compatible
  • Stainless Steel Adapter Plugs – Replaces ball lock or pin lock posts on compatible kegs.  Allow you to connect 1/4″ MFL or MPT fittings directly to a keg without using a QD.
  • Gas QD with Integrated Check Valve – Prevents Beer Back-Feeding – Ball LockPin Lock – keep beer from flowing the wrong way
  • Inline Check Valves – MFL, Barbed
  • Inline Regulator – allows you to control pressure on line by line basis – ReviewDial in w/SpundingUse for portable serving!
  • Threaded Ball Lock Posts – these NPT threaded ball lock posts allow you to add a ball lock post pretty much anywhere you want to – Liquid, Gas
  • Low Profile Pin Lock QDs (5/8″ Shorter) – LiquidGasCombo – these are great if you’re having clearance problems.
  • Pin Lock Keg Depressurizer Tool – These help you easily vent pin lock kegs – since pin lock style lids don’t have a PRV
  • Shank Parts Diagram
  • Taprite PT101 Pony Pump Parts & Diagram

Stainless Steel Ball Lock Quick Disconnects

Tools for Removing Keg Posts

Rebuild Your Kegs

Our Curated List of Keg Deals!

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Make sure the components you use are compatible and rated for your intended application.  Contact manufacturer with questions about suitability or a specific application.  Always read and follow manufacturer directions. tag:itsapage toppost:kegoringsandparts tag:tpr rs:5