---
product_id: 408162398
title: "Fermentation TPE Rubber Stoppers – Drilled Bungs for Airlocks (#8 Drilled Stopper, 4-Pack)"
brand: "fermentaholics"
price: "$25.34"
currency: USD
in_stock: true
reviews_count: 5
category: "Fermentaholics"
url: https://www.desertcart.us/products/408162398-fermentation-tpe-rubber-stoppers-drilled-bungs-for-airlocks-8-drilled
store_origin: US
region: United States of America
---

# Fits multiple ferment vessels Durable recyclable TPE Precision #8 drilled fit Fermentation TPE Rubber Stoppers – Drilled Bungs for Airlocks (#8 Drilled Stopper, 4-Pack)

**Brand:** fermentaholics
**Price:** $25.34
**Availability:** ✅ In Stock

## Summary

> 🍻 Seal your craft, unlock your flavor!

## Quick Answers

- **What is this?** Fermentation TPE Rubber Stoppers – Drilled Bungs for Airlocks (#8 Drilled Stopper, 4-Pack) by fermentaholics
- **How much does it cost?** $25.34 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/408162398-fermentation-tpe-rubber-stoppers-drilled-bungs-for-airlocks-8-drilled)

## Best For

- fermentaholics enthusiasts

## Why This Product

- Trusted fermentaholics brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Premium TPE Material for Longevity:** Crafted from thermoplastic elastomer, these stoppers combine rubber-like flexibility with eco-friendly recyclability.
- • **Reliable Seal with Easy Maintenance:** Tight, slip-resistant fit that lasts—just keep the rim dry or add a simple rubber band for extra security during vigorous fermentation.
- • **Essential Gear for Homebrew Innovators:** Whether you’re crafting beer, wine, kombucha, or kimchi, these stoppers are the must-have tool to elevate your fermentation game.
- • **Universal Fit for Diverse Brewing Vessels:** Designed to snugly seal a variety of carboys, jars, and fermenters—your all-in-one stopper solution.
- • **Perfectly Drilled for Airtight Fermentation:** Engineered with a #8 drilled hole to securely fit standard airlocks, ensuring flawless gas release and contamination protection.

## Overview

These Fermentation TPE Rubber Stoppers (#8 Drilled, 4-Pack) are precision-engineered, durable, and recyclable plugs designed to fit standard airlocks and a variety of fermentation vessels. Made from premium thermoplastic elastomer, they provide a secure, airtight seal essential for homebrewing beer, wine, kombucha, and more, ensuring your fermentation process is both efficient and contamination-free.

## Description

desertcart.com: Fermentation TPE Rubber Stoppers – Drilled Bungs for Airlocks (#8 Drilled Stopper, 4-Pack): Home & Kitchen

Review: Work as intended - Have bought these twice. Good quality, have zero complaints about these. Had to do measurements to make sure I bought the right size. Airlock fits tight and secure tightly in the carboy. Have noticed if the inside rim or the rubber is wet they tend to slip out of the carboy. Can be solved with making sure those are dry or taking a rubber band and wrapping around the finger loop and over top of the stopper. They are a little pricey in my opinion but should last a lifetime.
Review: The oddest of things - Needed to vacuum down a commercial truck hydraulic clutch cylinder and reservoir system,,,,, the dimensions were detailed and accurate (to fit the reservoir opening ),,,,the material was high quality,,,,, next day delivery ,,,,,,,, CAN YOU BELIEVE IT ! Shopping the desertcart is shopping the universe

## Features

- DRILLED STOPPERS: Drilled bungs with standard size to fit an airlock
- VARIETY OF FITS: Drilled rubber stoppers fit into a variety of different brewing vessels, and each stoppers measurement is specified in the product pictures
- HOMEBREWING ESSENTIAL: A must-have for all home fermenters and homebrewers
- FERMENT YOUR FAVORITES: Use with an airlock to make beer, wine, mead, cider, sauerkraut, kimchi, hard kombucha, and so much more
- PREMIUM MATERIALS: Made from TPE (thermoplastic elastomer), a durable rubber-like, recyclable material

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09N44W7VC |
| Best Sellers Rank | #1,004,721 in Home & Kitchen ( See Top 100 in Home & Kitchen ) |
| Brand | Fermentaholics |
| Color | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (44) |
| Date First Available | December 6, 2021 |
| Is Dishwasher Safe | No |
| Item Weight | 4.2 ounces |
| Material | Plastic |
| Number of Items | 4 |
| Product Dimensions | 1.45"W x 1"H |
| Shape | Cylindrical |

## Product Details

- **Brand:** Fermentaholics
- **Color:** Black
- **Material:** Plastic
- **Product Dimensions:** 1.45"W x 1"H
- **Shape:** Cylindrical

## Images

![Fermentation TPE Rubber Stoppers – Drilled Bungs for Airlocks (#8 Drilled Stopper, 4-Pack) - Image 1](https://m.media-amazon.com/images/I/61xuKWMbJrL.jpg)

## Questions & Answers

**Q: is the hole perfectly centered?and what ios the size?**
A: The hole is perfectly centered and is 9.6 mm or .378" wide

**Q: How do you stop them from slipping out on their own?**
A: I found that putting a couple inches of paper towel over the bottom not only keep the stopper from slipping out.. it also adds a bit more protection from things entering the hole while your unaware. I've just did 4 gallons of grapes with blueberries.. the meter read just shy of a desert wine.. it turned out wonderfully light and easy to drink. THE MAX

**Q: Will these fit a 5 gallon plastic water jug used for drinking water dispenser?**
A: If you need to cap 5 gallon drinking water jugs, you may be looking for this type of product instead (5 Gallon Water Jug Cap)   https://www.amazon.com/dp/B0B3QXM4JG

**Q: what is the diameter of the hole?**
A: 3/8th inch. It matches all standard fermenter airlocks.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Work as intended
*by J***M on April 30, 2025*

Have bought these twice. Good quality, have zero complaints about these. Had to do measurements to make sure I bought the right size. Airlock fits tight and secure tightly in the carboy. Have noticed if the inside rim or the rubber is wet they tend to slip out of the carboy. Can be solved with making sure those are dry or taking a rubber band and wrapping around the finger loop and over top of the stopper. They are a little pricey in my opinion but should last a lifetime.

### ⭐⭐⭐⭐⭐ The oddest of things
*by R***N on December 22, 2023*

Needed to vacuum down a commercial truck hydraulic clutch cylinder and reservoir system,,,,, the dimensions were detailed and accurate (to fit the reservoir opening ),,,,the material was high quality,,,,, next day delivery ,,,,,,,, CAN YOU BELIEVE IT ! Shopping the Amazon is shopping the universe

### ⭐⭐⭐⭐⭐ Easy to Drill Hole
*by G***D on March 15, 2025*

I needed to center a shaft inside a tube in order to pour a polymer sleve on it. These were easy to drill to the right size and worked perfectly.

## Frequently Bought Together

- Fermentation Rubber Stoppers Drilled Bungs For Use With Airlock (#8 Rubber Stopper - 4 Pack)
- Fastrack Airlocks for Fermenting Bubble Airlock for Wine Making and Beer Making BPA-Free S-Shaped Airlock used for Brewing Wine, Beer, Pickles & more Transparent Airlock Set Of 3
- Five Star - 6022b_ - Star San - 32 Ounce - High Foaming Sanitizer

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-02*