--- product_id: 151526380 title: "Mudder 50 Packs Airlock Grommet Fermenter Lid Grommet" brand: "mudder" price: "€ 14.93" currency: EUR in_stock: true reviews_count: 8 category: "Mudder" url: https://www.desertcart.hr/products/151526380-mudder-50-packs-airlock-grommet-fermenter-lid-grommet store_origin: HR region: Croatia --- # Hermetic seal blocks oxygen ingress Fits 5/8" hole, easy press-fit install Durable rubber & PBA for long-term use Mudder 50 Packs Airlock Grommet Fermenter Lid Grommet **Brand:** mudder **Price:** € 14.93 **Availability:** βœ… In Stock ## Summary > 🍺 Seal the deal on perfect fermentation β€” don’t let your brew miss out! ## Quick Answers - **What is this?** Mudder 50 Packs Airlock Grommet Fermenter Lid Grommet by mudder - **How much does it cost?** € 14.93 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/151526380-mudder-50-packs-airlock-grommet-fermenter-lid-grommet) ## Best For - mudder enthusiasts ## Why This Product - Trusted mudder brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Oxygen-Proof Seal:** Ensures airtight fermentation by perfectly locking out oxygen, preserving flavor and quality longer. - β€’ **Unmatched Durability:** Crafted from premium rubber and PBA, built to withstand high temps and repeated use without wear. - β€’ **Bulk Pack Convenience:** 50-pack supply means you’re always ready to upgrade multiple fermenters or share with your brewing crew. - β€’ **Effortless Installation:** Press-fit design lets you convert any container into a professional-grade fermenter in seconds. - β€’ **Universal Compatibility:** Designed to fit standard 5/8" holes, compatible with most airlocks, mason jars, and plastic bucket lids. ## Overview The Mudder 50 Packs Airlock Grommet set offers 50 durable rubber grommets engineered for airtight sealing in fermentation setups. Sized for 5/8" holes with a 3/8" inner diameter, these grommets fit most airlocks and fermenter lids, ensuring oxygen stays out and flavor stays in. Ideal for home brewers and fermentation enthusiasts looking to upgrade mason jars or plastic buckets into professional-grade fermenters with easy, reliable installation. ## Description 50 Packs airlock grommet, fermenter lid grommet, rubber grommets for mason jars, straws, airlock, beer, wine, plastic bucket fermenter lids, 5/8 inch outer diameter and 3/8 inch inner diameterFeatures:Made of durable and long lasting rubber, the airlock grommet with good hermetical sealing performance fits most airlock and you can use the airlock grommet to turn mason jars into drinking bottles.Various application:This airlock grommet fits well with most types of airlocks and plastic buckets lids and straws. It is much convenient for you to make your own airlock lids for fermenting with our useful product. Easy installation into a bucket lid and provides a good sealing.Specification:Material: PBA plasticColor: blackSize: 5/8 inches outer diameter, 3/8 inches inner diameterPackage including:50 x Rubber airlock grommets Review: La forma mas sencilla y economica de adaptar una trampa de aire - La mejor opcion para usar cualquier contenedor con trampa de aire, solo se requiere una mecha de 1/2 pulgada y listo, funciona correctamente en cunetes de plastico, frascos de vidrio, hasta en botellones de plastico con tapa Review: I like it - Fits my fermentation vessels perfectly ## Features - 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 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07WNHS4TP | | Best Sellers Rank | #55,601 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #16 in Brewing & Fermentation Airlocks | | Brand | Mudder | | Brand Name | Mudder | | Closure Type | Press Fit | | Color | Black | | Customer Reviews | 4.4 out of 5 stars 494 Reviews | | Is the item dishwasher safe? | Yes | | Is the item microwaveable? | Yes | | Item Weight | 1.6 ounces | | Manufacturer | Mudder | | Material | Rubber | | Material Type | Rubber | | Number of Pieces | 50 | | Product Style | Compact | | Shape | Round | | Style | Compact | | UPC | 754407812291 | | Unit Count | 50.0 Count | ## Product Details - **Brand:** Mudder - **Color:** Black - **Item Weight:** 1.6 ounces - **Material:** Rubber - **Style:** Compact ## Images ![Mudder 50 Packs Airlock Grommet Fermenter Lid Grommet - Image 1](https://m.media-amazon.com/images/I/71EZvq3E48L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ La forma mas sencilla y economica de adaptar una trampa de aire *by R***A on February 21, 2026* La mejor opcion para usar cualquier contenedor con trampa de aire, solo se requiere una mecha de 1/2 pulgada y listo, funciona correctamente en cunetes de plastico, frascos de vidrio, hasta en botellones de plastico con tapa ### ⭐⭐⭐⭐⭐ I like it *by W***E on January 2, 2026* Fits my fermentation vessels perfectly ### ⭐⭐⭐⭐ Perfect size *by S***A on November 29, 2025* Perfect for what I was needing it for. Easy to use. Did have a strong odor. ## Frequently Bought Together - Mudder 50 Packs Airlock Grommet, Fermenter Lid Grommet, Silicone Grommets for Mason Jars, Straws, Airlock, Beer, Wine, Plastic Bucket Fermenter Lids, 5/8" Outer Diameter and 3/8" Inner Diameter - Vintage Shop pc1 S-Shaped Airlock (Pack of 10), Clear --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/151526380-mudder-50-packs-airlock-grommet-fermenter-lid-grommet](https://www.desertcart.hr/products/151526380-mudder-50-packs-airlock-grommet-fermenter-lid-grommet) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-09-24*