

Ball Locks - Plastic (Gas & Liquid)
The line-side disconnects that snap onto your ball-lock keg posts. This is the plastic-bodied version with 1/4" MFL (male flare) threaded fittings — versatile, reliable, and the standard for connecting beverage and gas lines to any ball-lock keg setup. Sold as a gas / liquid pair so you can plumb both sides of the keg in one shot.
Why MFL fittings
- More versatile than barbs: MFL accepts a wide range of swivel nuts and adapters — much easier to swap line types or fitting sizes.
- Reusable: Unlike barbed fittings (which often deform on removal), MFL connects and disconnects cleanly hundreds of times.
- Reliable seal: Properly tightened MFL holds gas and liquid pressures without leaks.
- Plastic body: Lightweight, lower-cost option compared to stainless. Plenty for home draft use.
Specifications
| Type | Ball lock disconnects (plastic body) |
|---|---|
| Variants | Gas (in) and Liquid (out) — sold as a pair |
| Fitting | 1/4" MFL (male flare) threaded |
| Compatible with | Standard ball lock keg posts (Cornelius-style) |
How to Use
Snap the gas disconnect onto the gas-in post on your keg; snap the liquid disconnect onto the liquid-out post. Connect your gas line and beverage line via the 1/4" MFL fittings (line and swivel nuts sold separately).
Frequently Asked Questions
Will these fit Keg Smiths kegs?
Only if the keg has ball-lock posts installed — see our Ball Lock Disconnect Posts to add them, or get the Mini Keg with Ball Lock Spear pre-installed.
Are stainless versions available?
These are the plastic version. Contact us about stainless ball-lock disconnects if you need higher durability for commercial use.
Pairs Well With
Pair with our Ball Lock Disconnect Posts for a complete keg-side conversion, or the Party Tap with 5' Hose for hidden-keg service.

