Rubber Stopper- Size 13- Drilled

I'm using this product for the purpose of a yeast starter which is used in brewing beer. I already had the 3 piece airlock for fermenting but I wanted to begin using a yeast starter. I bought the Proper started at the homebrew store and used an on-hand vessel to create the starter. It was nearly impossible to clean. So I re-read the instructions on the can and it said to use a 2000 ml Erlenmeyer flask. I bought the flask and stopper here on Amazon and it all fit. I didn't know that when I bought them, but I'm here to let you know this all works together.Proper Starter Condensed Wort Can: B07MG7KK222000 ml wide mouth Erlenmeyer Flask: B000SMS5HKRubber Stopper- Size 13- Drilled: B00BOAZ6AY3 Piece Airlock: B000E60G2W (I bought the actual one in a homebrew store this is a stand-in)

Worked a expected on our partial vacuum chamber.

The product was greatly needed for wine making. I had a difficult time finding this size. I received it within days of order. Thanks! A little pricey but worth it to me.

"Everything was great and as described"

what can be said; it is just a stopper.