---
product_id: 151526380
title: "Mudder 50 Packs Airlock Grommet, Fermenter Lid Grommet, Rubber for Mason Jars, Straws, Airlock, Beer, Wine, Plastic Bucket Fermenter Lids, 5/8 Outer Diameter and 3/8 Inner Diameter"
brand: "mudder"
price: "189 Lei"
currency: RON
in_stock: true
url: https://www.desertcart.ro/products/151526380-mudder-50-packs-airlock-grommet-fermenter-lid-grommet-rubber-mason
store_origin: RO
region: Romania
---

# Precise 5/8" OD & 3/8" ID sizing Hermetic seal blocks oxygen ingress Durable rubber & PBA for long-term use Mudder 50 Packs Airlock Grommet, Fermenter Lid Grommet, Rubber for Mason Jars, Straws, Airlock, Beer, Wine, Plastic Bucket Fermenter Lids, 5/8 Outer Diameter and 3/8 Inner Diameter

**Brand:** mudder
**Price:** 189 Lei
**Availability:** ✅ In Stock

## Summary

> 🍺 Seal the deal on perfect fermentation—because your brew deserves the best!

## Quick Answers

- **What is this?** Mudder 50 Packs Airlock Grommet, Fermenter Lid Grommet, Rubber for Mason Jars, Straws, Airlock, Beer, Wine, Plastic Bucket Fermenter Lids, 5/8 Outer Diameter and 3/8 Inner Diameter by mudder
- **How much does it cost?** 189 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/151526380-mudder-50-packs-airlock-grommet-fermenter-lid-grommet-rubber-mason)

## 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

- • **Built to Last:** Crafted from premium rubber and BPA-free plastic, engineered for high-temperature resistance and durability.
- • **Bulk Pack Advantage:** 50-pack supply ensures you’re always ready to scale your homebrew or fermentation projects effortlessly.
- • **Oxygen Out, Flavor In:** Hermetically seals your fermenter to lock in freshness and extend fermentation time without spoilage.
- • **Perfect Fit Every Time:** Designed with exact 5/8 inch outer and 3/8 inch inner diameters for seamless installation on standard lids.
- • **Versatile Fermentation Essential:** Compatible with mason jars, plastic buckets, straws, and most airlocks—turn any container into a pro-grade fermenter.

## Overview

The Mudder 50 Packs Airlock Grommet set features durable rubber and BPA-free plastic construction, providing a reliable hermetic seal that prevents oxygen from entering your fermenter. Sized precisely at 5/8 inch outer diameter and 3/8 inch inner diameter, these grommets fit most airlocks and lids, making them ideal for mason jars, plastic buckets, and more. With 50 pieces per pack, this product is perfect for homebrewers and fermentation enthusiasts looking to elevate their craft with consistent, long-lasting results.

## 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

## 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

## Product Details

- **Material:** Rubber
- **Color:** Black
- **Brand:** Mudder
- **Style:** Compact
- **Item Weight:** 1.6 ounces

## Images

![Mudder 50 Packs Airlock Grommet, Fermenter Lid Grommet, Rubber for Mason Jars, Straws, Airlock, Beer, Wine, Plastic Bucket Fermenter Lids, 5/8 Outer Diameter and 3/8 Inner Diameter - Image 1](https://m.media-amazon.com/images/I/7130fKttKAL.jpg)

## 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?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.ro/products/151526380-mudder-50-packs-airlock-grommet-fermenter-lid-grommet-rubber-mason](https://www.desertcart.ro/products/151526380-mudder-50-packs-airlock-grommet-fermenter-lid-grommet-rubber-mason)

---

*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-01-29*