Growler Cap
Lost the cap? Worn-out gasket? This is the original Keg Smiths replacement growler cap — the same airtight, stainless-steel lid that ships with our 64 oz and 128 oz mini kegs. Drop-in fit, no tools, instant fix.
Why Grab a Spare
- Original-spec fit: Threads exactly to the Keg Smiths growler/mini keg neck — no leaks, no cross-threading.
- Built-in seal: Food-grade gasket holds carbonation when the keg is not on the tap system.
- Stainless steel: Won't dent, rust, or absorb flavor.
Specifications
| Material | 304 stainless steel with food-safe gasket |
|---|---|
| Fits | All Keg Smiths 64 oz and 128 oz mini kegs / growlers |
| Sold as | Single replacement cap |
How to Use
Hand-tighten over the keg neck. The gasket compresses to form an airtight seal — don't over-torque. To clean, remove the gasket, rinse cap and gasket with warm water, and reseat.
Frequently Asked Questions
Will this fit both the 64 oz and 128 oz kegs?
Yes. All Keg Smiths mini kegs and growlers share the same neck, so one cap fits every size.
Does it hold carbonation?
Yes. The food-grade gasket seals airtight, so a filled keg keeps its carbonation while off the tap system.
Is the gasket replaceable?
Yes. Pull it out to clean, and if it ever wears out the O-Ring Kit has a fresh seal.
Pairs Well With
If you also need a fresh seal, grab the O-Ring Kit. Filling and storing a spare keg? Pair with the Stainless Steel Spare Keg.