3 REGULAR, Grommeted Plastic SteriKAP's Plus 3 SteriLOCK Food Fermentation Airlocks

Great little lid and just perfect for the emmy jars from pound land. I use mine for fermenting and kefir and they do the job perfectely.

These were ordered to fit onto my kilner glass jars but they didn't fit. They are still a great product however and they arrived the next day which was a real surprise, thank you so much. Perhaps more detail could be provided in the listing to make it clear that these won't fit all kilner glass vessels and for this reason I didn't give it 5 stars.

These plastic lids with inbuilt valves for letting CO2 out, fit both standard UK Kilner and U.S. Ball jars. While the lids are not tight fitting, enough of a seal exists so that CO2 gas can escape and oxygen from the air stays out. This creates a controlled environment that reduces the risk of the 'wrong' kind of off-tasting bacteria/yeast/mould from growing on the surface of whatever you are pickling or preserving inside the jars. Lids have a low 'overhead' height, making for a good vertical fit in the fridge and they clean up easily after use. Recommended.

Does not fit a regular sized jar

Work well. Looks like a bit of filter paper keeps dust and bugs out. Need to ensure material 3cm from filter or liquid will ruin airlock effect

Brilliant. Simple but effective and cheap - what more could you ask for?

Great product. Use for my sauerkraut and they work well.

they do their job. I fermented cabbage and no smell got out, no mould formed. just great