Check the listing for details. Mudder 50 Packs Airlock Grommet, Fermenter Lid Grommet, Rubber Grommets for Maso. Color: black, Condition: New. Listed at 10.29 USD. 100% GenuineFree Shipping SuperbParadise Mudder 50 Packs Airlock Grommet, Fermenter Lid Grommet, Rubber Grommets for Mason Jars, Straws, Airlock, Beer, Wine, Plastic Bucket Fermenter Lids, 5/8 Outer Diameter and 3/8 Inner Diameter- Quality materials: our airlock grommet is made of durable rubber and PBA which is durable and resistant to high temperatures for long-term 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 5/8 inches and an inner diameter of 3/8 inches; You need to drill a 5/8 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 The Fine PrintPaymentsWe accept the following payment methods: PayPal | Credit Card Please make your payment promptly after winning an auction to ensure faster shipping!ReturnsWe accept returns of unopened items in their original packaging within 30 days of purchase. If it's been more than 30 days, we're unable to process a refund or exchange. Once we receive your return, we'll inspect it and email you with an update. If approved, your refund will be processed and credited back to your original payment method. Only regular priced items may be refunded. Sale items are non-refundable.ShippingShipment processing time: All orders are processed within 2-3 business days. Orders are not shipped or delivered on weekends or holidays. Due to high order volumes, shipments may take a few extra days. Please allow additional days in transit for delivery. If there will be a significant delay in shipment of your order, we will contact you via email or telephone. Shipping rates & delivery estimates Shipping charges for your order will be calculated and displayed at checkout.