Silicone Straw Hole Grommet Mason Jar Fermentation Airlocks Sauerkrau Homebrewing Sealer Plugs Wine Beer Brewing Stopper Airlock Silicone Straw Hole Grommet Mason Jar Fermentation Airlocks Sauerkrau Homebrewing Sealer Plugs Wine Beer Brewing Stopper Airlock. Sale price : $5.72 Category : Home & Garden