2 Piece S-Shape Air Lock Twin Bubble Plastic with #6 Rubber Stopper Grommet Homebrew Fermentation Wine Valve Wine Beer Making Twin Bubble Fermentation

My husband was excited when they arrived. Just as described. Great value as I couldn't find them cheaper anywhere else.

Wowweee, thought this would have been better but I guess if you want a decent airlock go elsewhere. Plastic is about the cheapest stuff you could get and the bung is poorly drilled for hole. I'll have to end up using my drill to better bore out the hole rather than this chop job. I had it as 2 stars but I am just going with 1 star cause this is garbage quality item you get from Amazon now-a-days. Hopefully it doesn't corrupt my wine if I ever end up using this garbage. I'll have to clean up bung with some sandpaper too just due to the flakiness of the rubberI'll prob end up using the bung but not the airlock. Airlock will be from separate purchase with a cap to prevent any pests entering airlock. Thought it was included but pictures of item are crap

Worked great for home winemaking.

Was hoping they came with the breathable cap but they don't. They work great, good price.

Rubber is terribly dry brittle and flakey. Holes drilled through are ripped up and can't smooth because the terrible quality of rubber is more like an eraser than actual rubber bung. No caps. And off centered holes. Just junk.

Absolute junk. Id be returning them if it wouldnt be more hassle than its worth. The stoppers are terribly cut n leave a white powdery residue all over EVERYTHING. No way I'm using them. The airlocks have no waterline, and they dont have caps. I'll NEVER purchase again.

Very cheap. Rubber plugs look to be hand drilled and are very poor quality. Don't buy!!!

These things aren't just for keeping air out, they're also for keeping fruit flies and other unwanted things like cat hair or whatever is in the air. You certainly want a cap on them to keep anything from getting in the airlock.