Gallon Jar Gasket 4 Pack: 4 Pack Of Brewing O-Rings; Food Grade Silicone Gasket | | Easy To Use: Add A Silicone Gasket To Any Standard 110Mm Lid To Create An Airtight Seal. Drill Your Lid And Add An Airlock To Turn Your Jar Into A Fermentation Vessel. | | Home And Kitchen Essential: Ideal For Small-Batch Fermentation Beer, Hard Kombucha, Winemaking, Mead, Cider, Vinegar, Hard Seltzer, Kvass, Kombucha, Kefir, Fermented Veggies Including Pickles, Kimchi, Sauerkraut, And Hot Sauces. | | Store And Organize: Great For Storage, Pantry Or Any Airtight Storing Needs Such As Pasta, Beans, Rice, Flour, Seasonings, Spices, And More. | | 110 Mm Silicone Gasket: This Pack Contains 4 Gaskets, Size 110Mm That Fits 1 Gallon Wide Mouth Jar Lids. | |