Stainless Steel Carbonation Cap (3pk)

And for putting beer sample under pressure for a later bottle share (from the keg). I wish they would make the equivalent of these that would fit a growler.

Single biggest issue with this product is the rubber washer/seal. It falls out all the time!!!I worked as a machinist for many years and this is a super easy problem to solve within their CNC lathe program to cut a small grove internally to capture a slightly larger rubber washer.If this washer issue was fixed it would be a 100% five star product!!! These are high quality manufacturing and work great! I purchased 3 on my first order and now am purchasing 6 more. (I drink a lot of carbonated water.)

Purchased these in order to force carbonate 1 liter bottles of water. Only one of the three can actually be screwed on to my bottles. The threads on two of them is just slightly off enough that I can't use them. Love the one that I can use though!

Good connectors for the money!

Unnoticeable.