Drilled Stopper #6 - 21 mm to 31 mm taper

Our stoppers come in a range of sizes.  Make sure to measure the size you need carefully.

You may view our whole selection of stoppers here.

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Dimensions of this stopper:

  • Diameter at top of stopper - 21 mm
  • Diameter at bottom of stopper - 11 m
  • Height of stopper - 25 mm
How to Use

This size is commonly used for:



We are not happy unless you are. To ensure your satisfaction, we offer our guarantee backed by our promise of a full store-credit refund on any unsatisfactory product or delivery---no need to ship anything back. Simply email us at info@thebeveragepeople.com if the need to claim this guarantee should arise.

Pickup Locations Available for This Item

The Beverage People Warehouse, Santa Rosa.

Fulfillment occurs Tues - Sat, 11 AM - 5 PM. We aim to fulfill orders in 2 hours or less, whenever possible.

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Shipping Details
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How to Return Goods for Refund

All our supplies are guaranteed for one year. Request for refunds occurring more than 30 days after the date of purchase on non-defective goods may be granted as a store credit if the goods are returned in their original condition. Yeast is perishable and should be refrigerated on arrival. No refunds are allowed on sales of living organisms such as yeast and bacteria.


Average rating:
average rating 80%
2 reviews

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Featured positive reviews:

average rating 60%
Center hole is too small 09/26/2020
By Jeremy Fautley
It is very hard to get an air lock to fit into the center hole when I put this on a one gallon bottle with wine in it for fermenting. I had to drill out the hole and now it works perfect