Silicone Waterless Airlock for Glass Carboys


3.00 out of 5

In stock

SKU: ER-FE479 Categories: ,
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Silicone Waterless Airlock

You know the old adage about building a better mousetrap. Well the old bubbling airlock of yesteryear may now be obsolete. Check out these all new silicone waterless airlocks, these are now the shop favorites and they fit 3, 5, 6 and 6.5 gallon glass carboys (equivalent to a #6.5 stopper).

This breathable Silicone stopper acts as both a stopper and an airlock. It’s unique design allows CO2 pressure to escape but keeps oxygen and airborne contaminates out. As an added bonus (like you needed another reason), it will create a vacuum when the wort is cooling or if you move your fermenter into a cooler environment (no more sucking back water out of the old airlocks). Also, the airtight seal is ideal for extended ferments when CO2 production is still present but very slight. It can handle up to 570 degrees, so it can be boiled for sanitizing and cleaning.

Get one for each of your carboys today!!

We also have Silicone Waterless Airlocks for your Plastic Carboys HERE

Note: Silicone is slippery when wet, so the airlock needs to be dry and the inside neck of the carboy needs to be dry. If they are wet, the airlock will try to pop back out.

Weight 0.25 lbs
Dimensions 3 x 3 x 3 in

1 review for Silicone Waterless Airlock for Glass Carboys

  1. 3 out of 5


    I thought these would be the answer to our prayers. Seemed like the ultimate airlock so I bought 3 of them. All three won’t stay in any of my 6.5 or 5 gallon carboys, no matter what I do. Like I said great concept, poor design. I’m goin back to the 3-piece and a solid stopper.
    ** Hi A-ron, I had the same problem with these the first time I used them. Silicone is slippery when wet, the trick is to make sure they are dry and the inner neck of your carboy is dry when you insert them. If you do that, they will hold really well. They also work really well, I have replaced all of the old stopper and airlocks in my brewery with these and I couldn’t be happier. -Rebel

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