Mudder 50 Packs Airlock Grommet Fermenter Lid Grommet Rubber for Mason Jars Straws Airlock Beer Wine Plastic Bucket Fermenter Lids 58 Outer Diameter and 38 Inner Diameter

Quality materials our airlock grommet is made of durable rubber and PBA which is durable and resistant to high temperatures for longterm use Good performance this fermenter lid grommet is easy to install into the lid and hermetically sealed to protect food from oxygen You can use this amazing product with airlocks to keep the fermentation for a longer period of time Hermetic sealing this rubber grommet is well combined with the airlock and has a good hermetic seal to prevent oxygen from entering the fermenter This helps to keep the enzyme fermented for a long time Quantity and size you will get 50 arilock grommet with an outer diameter of 58 inches and an inner diameter of 38 inches You need to drill a 58 inches hole in the fermenter lid Then the airlock grommet is very easy to insert cover hole Wide use this airlock gasket is suitable for any type of airlock and plastic lid and straw Use these rubber gaskets to convert Mason jars into airlock fermentation vessels