---
product_id: 276840
title: "Twin Bubble Airlock and Carboy Bung (2-Pack) | Fermentation Airlocks for Homebrewing Beer, Wine, Mead, and Kombucha"
brand: "fastrack"
price: "€ 16.18"
currency: EUR
in_stock: true
category: "Fast Rack"
url: https://www.desertcart.sk/products/276840-twin-bubble-airlock-and-carboy-bung-2-pack-fermentation-airlocks
store_origin: SK
region: Slovakia
---

# 2-pack twin bubble airlocks for dual fermentation transparent food-grade plastic for easy monitoring airtight seal prevents oxidation & contamination Twin Bubble Airlock and Carboy Bung (2-Pack) | Fermentation Airlocks for Homebrewing Beer, Wine, Mead, and Kombucha

**Brand:** fastrack
**Price:** € 16.18
**Availability:** ✅ In Stock

## Summary

> 🍻 Brew Boldly, Bubble Confidently — Your Fermentation’s Best Friend!

## Quick Answers

- **What is this?** Twin Bubble Airlock and Carboy Bung (2-Pack) | Fermentation Airlocks for Homebrewing Beer, Wine, Mead, and Kombucha by fastrack
- **How much does it cost?** € 16.18 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/276840-twin-bubble-airlock-and-carboy-bung-2-pack-fermentation-airlocks)

## Best For

- fastrack enthusiasts

## Why This Product

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

## Key Features

- • **Dual-Pack Efficiency:** Two airlocks and bungs included for simultaneous fermentation projects or backups.
- • **Crystal Clear Monitoring:** Transparent design lets you visually track fermentation activity without opening your vessel.
- • **Versatile Fermentation Use:** Perfect for beer, wine, mead, kombucha, and even fermented foods like kimchi and sauerkraut.
- • **Effortless Pressure Control:** Automatic CO2 release prevents pressure buildup—no manual intervention needed.
- • **Universal Fit Compatibility:** Rubber bungs fit most carboys and jugs, making setup quick and hassle-free.

## Overview

The Fastrack Twin Bubble Airlock and Carboy Bung 2-pack offers homebrewers a reliable, airtight fermentation solution crafted from durable, food-grade transparent plastic. Designed for easy installation and universal fit, these airlocks automatically release CO2 while preventing oxygen entry, ensuring optimal fermentation for beer, wine, mead, kombucha, and fermented foods. Trusted by thousands with a 4.6-star rating, this set combines functionality and simplicity to elevate your homebrewing experience.

## Description

Buy Fastrack Twin Bubble Airlock and Carboy Bung (2-Pack) | Fermentation Airlocks for Homebrewing Beer, Wine, Mead, and Kombucha: Airlocks - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00A6TRKO4 |
| ASIN  | B00A6TRKO4 |
| Best Sellers Rank | #20,388 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #7 in Brewing & Fermentation Airlocks |
| Brand Name | FastRack |
| Color | Clear/Tan |
| Customer Reviews | 4.6 4.6 out of 5 stars (13,899) |
| Date First Available  | November 13, 2012 |
| Global Trade Identification Number | 00825392000052 |
| Included Components | Airlock and Stopper (Pack of 2) |
| Item Dimensions L x W | 3.15"L x 1.97"W |
| Item Form | physical component |
| Item Type Name | Bubble Airlock and Bung (2pk) |
| Item Weight | 30 g |
| Item model number  | B00A6TRKO4 |
| Manufacturer | Fermtech |
| Manufacturer  | Fermtech |
| Manufacturer Part Number | B00A6TRKO4 |
| Material Type | Plastic, Rubber |
| Model Number | B00A6TRKO4 |
| Number of Items | 2 |
| Number of Packs | 2 |
| Product Dimensions  | 3.15 x 1.97 x 3.15 inches; 1.06 ounces |
| UPC | 628504292792 825392000052 |
| Unit Count | 2 Count |

## Product Details

- **Brand:** FastRack
- **Color:** Clear/Tan
- **Item Weight:** 30 g
- **Manufacturer:** Fermtech
- **Material:** Plastic, Rubber
- **Number of Items:** 2
- **Number of Packs:** 2
- **Product Dimensions:** 3.15"L x 1.97"W
- **UPC:** 628504292792 825392000052
- **Unit Count:** 2 Count

## Images

![Twin Bubble Airlock and Carboy Bung (2-Pack) | Fermentation Airlocks for Homebrewing Beer, Wine, Mead, and Kombucha - Image 1](https://m.media-amazon.com/images/I/41lj7thLfSL.jpg)

## Questions & Answers

**Q: If they are 90% chance this is made in china how can we know the plastic is bpa free?**
A: Don't see that it matters. Nothing passes through the device into the carboy and positive to static neutral pressure inside prevents air from entering. Zero contact means no chance of transfer.

**Q: Can the airlock be removed from the bung and used with other standard bungs?**
A: Yes, the twin bubble airlock can be removed from the bung.

**Q: what is the height of these from top to bottom?**
A: aloha it is 7 inches.Try making "mead" it is amazingly good even with regular yeast! Add raisins

**Q: Will this fit my 5 gallon class jug?**
A: Yes. The universal bungs that come with the twin bubble airlocks are designed for 3, 5 & 6 gallon glass carboys.

## Frequently Bought Together

- Twin Bubble Airlock and Carboy Bung (Pack of 2)
- Lalvin EC-1118 Wine Yeast (10 Pack) - Champagne Yeast - Make Wine Cider Mead Kombucha At Home - 5 g Sachets - Saccharomyces cerevisiae - Sold by CAPYBARA Distributors Inc.
- Fermtech - Auto Siphon Mini with 6 Ft of Food Safe Tubing & Clamp - Easy Home Brewing, Winemaking Kit, Complete System for Beer, Wine, Liquid Transfer & Fermentation Tools - Perfect for Small Batches

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**Shop now:** [https://www.desertcart.sk/products/276840-twin-bubble-airlock-and-carboy-bung-2-pack-fermentation-airlocks](https://www.desertcart.sk/products/276840-twin-bubble-airlock-and-carboy-bung-2-pack-fermentation-airlocks)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-09-05*