Top Hat Airlock Grommet – 1 piece (13mm)
Works on both 3-piece and S-type airlocks.
What Is It?
The top hat airlock grommet is a small rubber seal that fits into a hole in the fermenter lid. This will smooth out the drilled hole and provide a clean neat place for the airlock to go in, giving a good airtight seal as the airlock is inserted. The drill size we recommend for this grommet is 15mm to provide a tight fit. The advantage of the top hat grommet over a simple grommet is that installation is much easier, and it can be easily removed for proper cleaning.
Why Do You Need It?
If you intend to drill a hole in your fermenter lid to insert an airlock, you need to make sure that the hole is completely round and sealed. The airlock must be tight against the hole for the seal to be effective.
How Do You Insert It In The Lid?
The grommet will need to fit in a 15mm hole that has been drilled into the fermenter lid. Gently push into the lid all the way around.
We also stock Simple Grommets.
Here’s a video on ‘How to set up a fermenting bucket‘.