Air Locks 8 Pieces Plastic Airlock and 30 Pieces Silicone Grommets,Airlock Set for Fermenting, Brewing, Beer, Wine, Sauerkraut, Kimchi and Other Fermentation Projects

Bag the products came in (not the mailer, the bag that was inside the mailer) was torn and one of the airlocks was missing, so I only received 7 of the 8. For me personally it wasn't a big enough issue to cause a huge stink over and get it refunded, but it's clear to see the bag tore because it was too small to actually hold all 8 airlocks. As far as the product themselves go, the plastic is of decent enough quality and it's really hard to mess up drilling a few holes in them. I drilled 1/4 inch holes then reemed them to 3/8 which is very important to do if you want a snug fitting grommet that doesn't tear. They fit as well as any other grommets I've ordered.

Not only a great value, but these are soooo much easier to use than the s-shaped bubblers. Solid construction and durability!

I had a terrible time finding a drill bit this size, but I absolutely love these fermentation locks. They do a great job and I'm very pleased that I bought them.

It works as advertised. I don't have much else to say about it. I used a mason jar lid, broke a hole in it with a screwdriver, then added the gasket, and it worked.

If your ferment backs up, might as well toss it. Also know it needs a 1/2 inch hole. Anything smaller is precarious, anything larger doesn't SEAL

Will buy again, fit as intended.

So far I've only used these air locks for fermenting foods like pepper sauces and sauerkraut. They worked as advertised and with relative ease. The most difficult bit was creating a hole in the lid of the fermentation vessel to match the diameter of the air lock's stem (I didn't have a drill handy at the time), but once installed, they worked like a charm. Note: If you're planning on doing your fermenting on shelves or in the fridge, keep in mind that these airlocks add 2-3 inches of height to the jar, so plan your shelf-spacing accordingly.

These are pretty standard airlocks - they work pretty well. This set is great because they have the rubber grommets so you can put them into any food-grade bucket. This was a great deal for the price and it was very easy to convert any bucket into a fermenting bucket.