Description
The Ball Lock Keg Post O-Ring – Yellow Liquid is a colour-coded silicone replacement seal for the liquid-out post on compatible Cornelius-style ball lock kegs.
The yellow colour identifies the liquid connection, making it easier to distinguish the liquid-out post from the gas-in post at a glance.
Sold individually – one yellow O-ring supplied.
Yellow Liquid Post Identification
This yellow O-ring provides a simple visual guide for the liquid-out post.
Therefore, you can identify the liquid connection quickly without relying only on the shape or markings of the stainless steel post.
Compatible Liquid Ball Lock Post
This yellow O-ring suits our Ball Lock Keg Liquid Post – 19/32″.
The O-ring fits around the outside of the post and provides the sealing surface for the liquid ball lock disconnect. As a result, keeping the O-ring in good condition helps maintain a reliable connection.
Silicone Post O-Ring
This post O-ring uses silicone rather than the LOW2 material found on some other keg seals.
A keg post O-ring works as a radial seal and needs to recover its shape as disconnects are attached and removed. Therefore, silicone is well suited to this application because of its spring-back characteristics.
Lubricate the Post O-Ring
Regular lubrication can help reduce wear on the post O-ring. In addition, it can make the liquid ball lock disconnect easier to attach and remove.
Apply a small amount of suitable food-grade lubricant during routine keg servicing. In particular, lubrication is useful after deep cleaning or whenever the O-ring feels dry.
Our Lubri-Film Plus is suitable for keg seal and O-ring maintenance.
Sold Individually
Each purchase includes one yellow silicone post O-ring.
Therefore, if you need to service several liquid posts, simply order the required quantity.
Key Features
- Yellow liquid-out post identification
- Replacement ball lock keg post O-ring
- Silicone construction
- Sold individually
- One yellow O-ring supplied
- Provides the sealing surface for the liquid disconnect
- Suitable for compatible Cornelius-style liquid ball lock posts
- Useful for routine keg servicing and maintenance
For more replacement keg components, explore our Ball Lock Kegs & Spare Parts range.





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