What Type and Size Posts Will Fit on My Homebrew Keg? | Corny Keg Posts Sizes

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The chart below and products listed below are brought to you by Kegconnection.com! Find what you need with ease or give them a call at 325-356-5204 if you need any help or have any questions.The first thing to determine is the type of keg that you have – Firestone, Spartan, Super Champion, John Wood, Challenger, etc.Before you purchase any replacement posts for your keg, you’ll need to determine the brand/maker of that keg. You can figure this out by finding the stamp or markings on the side of the keg.

Use our chart below to help understand what size posts your keg has:

Keg Type Gas Post Size – Thread Liquid Post Size – Thread Product Link
Cornelius, Ball Lock (all types)
19/32″ – 18 19/32″ – 18 View Product
Cornelius, Pin Lock (all types)
19/32″ – 18 (2 Pin) 19/32″ – 18 (3 Pin) View Product
Firestone V,  VI & Super Challenger, Ball Lock *
9/16″ – 18 5/8″ – 18 View Product
Firestone Challenger, ball lock (racetrack)
11/16″-18
3/4″-18
Not Available
Firestone, Pin Lock (all types)
9/16″-18 (2 Pin)
9/16″-18 (3 Pin)
View Product
John Wood 85, Ball Lock (racetrack)*
11/16″-18
3/4″-18
Not Available
John Wood RA or RC, Pin Lock
9/16″-18 (2 Pin)
9/16″-18 (3 Pin)
View Product
AEB, Ball Lock
19/32″-18
19/32″-18
View Product
Hoover Universal, Pin Lock 9/16″-18 (2 Pin) 9/16″-18 (3 Pin) View Product

* The vast majority (99%) of Firestone Ball Lock Kegs on the market use the same post except for the original Challenger, which had “racetrack” style lids. Racetrack style lids had straight sides like a race track and are rare. All other kegs had standard rounded sides. 

Not sure how to determine what keg you have? Look on the side and it should have the name stamped in the stainless steel. On some Pin Locks the brand is on the bottom. Still need help? Contact us using [email protected] or 325-356-5204