Cornelius Ball lock Post Gas to 5/8 inch bsp for Keg Coupler

Upgrade your 50L keg couplers (A‑Type, D‑Type, etc.) with these high‑quality 5/8" BSP Ball Lock Posts, designed to give you maximum versatility across different keg systems. Perfect for homebrewers and commercial setups, these posts allow you to use standard ball lock disconnects on your coupler for fast, easy keg changes.
Both the Liquid and Gas posts are made from durable 304 stainless steel and come fully assembled with seals, poppet, and spring, true plug‑and‑play convenience.

Liquid Ball Lock Post (Smooth Finish)

Designed specifically for liquid lines, this post features a smooth, un‑engraved finish to clearly differentiate it from gas fittings. A liquid disconnect will only fit a liquid post, ensuring correct and safe setup.

For best performance, we recommend applying a small amount of keg lube to the post to prevent beer residue from drying and making disconnect removal difficult over time.

Features:

• Smooth finish for liquid identification
• Complete assembly: seals, poppet & spring
• Easy conversion for 50L keg couplers

Gas Ball Lock Post (Engraved Band)

This post is designed for gas lines and is easily identified by the engraved band around the post. A gas disconnect will only fit a gas post, preventing mix‑ups during setup.

Features:

• Engraved band for gas identification
• Complete assembly: seals, poppet & spring
• Quick‑change compatibility for keg couplers