Drilled Rubber Stopper #6

boomchugalug.com

$1.39 

A drilled and tapered rubber stopper with a 9 mm center hole.  The #6 rubber stopper fits most growlers (either 32 oz or 64 oz) and 1 gallon jugs.

 Product Details:

  •  Top diameter: 32 mm
  •  Bottom diameter: 27 mm
  •  Height: 25 mm