---
product_id: 276840
title: "Twin Bubble Airlock and Carboy Bung (Pack of 2)"
brand: "fastrack"
price: "₩19833"
currency: KRW
in_stock: true
reviews_count: 13
category: "Fast Rack"
url: https://www.desertcart.kr/products/276840-twin-bubble-airlock-and-carboy-bung-pack-of-2
store_origin: KR
region: South Korea
---

# Automatic pressure release during fermentation Airtight seal prevents oxidation Twin bubble design for precise fermentation control Twin Bubble Airlock and Carboy Bung (Pack of 2)

**Brand:** fastrack
**Price:** ₩19833
**Availability:** ✅ In Stock

## Summary

> 🍷 Unlock the art of perfect fermentation with every bubble!

## Quick Answers

- **What is this?** Twin Bubble Airlock and Carboy Bung (Pack of 2) by fastrack
- **How much does it cost?** ₩19833 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/276840-twin-bubble-airlock-and-carboy-bung-pack-of-2)

## 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

- • **Crystal Clear Monitoring:** Made from food-grade transparent plastic for easy visual tracking of fermentation progress.
- • **Trusted Quality & Support:** Backed by FastRack’s commitment to durability and customer satisfaction—your fermentation, guaranteed.
- • **Versatile Brewing Essential:** Perfect for beer, wine, mead, kombucha, and even fermented foods like sauerkraut and kimchi.
- • **Universal Fit, Instant Setup:** Comes with two universal-fit carboy bungs compatible with most jugs and carboys.
- • **Effortless Fermentation Mastery:** Twin bubble airlocks provide real-time pressure monitoring without manual intervention.

## Overview

The Twin Bubble Airlock and Carboy Bung pack includes two airtight, food-grade plastic airlocks and universal-fit rubber bungs designed for seamless fermentation of beer, wine, mead, kombucha, and fermented foods. Its twin bubble design allows automatic CO2 release while preventing oxygen entry, ensuring optimal fermentation conditions with easy visual monitoring. Durable, easy to use, and trusted by homebrewers, this set is a must-have for anyone serious about crafting quality brews and ferments.

## Description

Buy Twin Bubble Airlock and Carboy Bung (Pack of 2): Airlocks - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Effective and works as advertised. - Bought these a few years ago and still using them every year to make wine. If you haven't tried it, plant some vines and go for it. It's very satisfying.
Review: Good price very functional - Worked aa expected

## Features

- WHAT'S INCLUDED: With this purchase, you'll receive two twin bubble airlocks and two universal-fit carboy bungs for managing fermentation of beer, wine, mead, or kombucha. FastRack airlocks are made from food-grade, transparent plastic—stronger and clearer for easy monitoring. The airtight design helps prevent oxidation, and the airlocks automatically release pressure during fermentation without manual effort.
- EASY & SIMPLE TO USE: Insert the assembled airlock into the hole of the rubber stopper that fits your current jug or carboy. Fill the Bubbler Airlock with water and insert the drilled stopper or bung to vent gasses during fermentation. The airlock cap should always stay on top when in use to allow gas to escape and prevent the water inside from quickly spilling out if tipped over.
- HOW IT WORKS: Airlocks enable CO2 to be released during fermentation and trap oxygen from entering the fermenter. The bubbler style airlock is the preferred airlock for secondary fermentation, as it is possible to monitor the pressure inside the fermenter, and is the go to winemaking airlock.
- WIDELY USED: The fermentation airlock can be used in various fermentation projects to preserve food as well! The brewing airlock can be used to brew craft beer or wine, but also used for sauerkraut, kimchi, etc.
- OUR COMMITMENT TO YOU: At FastRack, we stand behind the quality of our products and the trust our customers place in us. Your experience matters. If your order arrives damaged or incomplete, reach out—we’ll make it right.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00A6TRKO4 |
| Best Sellers Rank | #13,962 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #4 in Brewing & Fermentation Airlocks |
| Brand | FastRack |
| Color | Clear/Tan |
| Date First Available | November 13, 2012 |
| Global Trade Identification Number | 00825392000052 |
| Is Customizable | No |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.96 ounces |
| Item model number | B00A6TRKO4 |
| Manufacturer | Fermtech |
| Material | Plastic, Rubber |
| Number of Items | 2 |
| Product Dimensions | 3.15"L x 1.97"W |
| UPC | 628504292792 825392000052 |

## Product Details

- **Brand:** FastRack
- **Color:** Clear/Tan
- **Global Trade Identification Number:** 00825392000052
- **Is Customizable:** No
- **Item Weight:** 0.06 Pounds
- **Manufacturer:** Fermtech
- **Material:** Plastic, Rubber
- **Number of Items:** 2
- **Product Dimensions:** 3.15"L x 1.97"W
- **UPC:** 628504292792 825392000052

## Images

![Twin Bubble Airlock and Carboy Bung (Pack of 2) - Image 1](https://m.media-amazon.com/images/I/21q+r9X8coL.jpg)
![Twin Bubble Airlock and Carboy Bung (Pack of 2) - Image 2](https://m.media-amazon.com/images/I/31Wve8-6ZSL.jpg)
![Twin Bubble Airlock and Carboy Bung (Pack of 2) - Image 3](https://m.media-amazon.com/images/I/31qiMpEz5hL.jpg)
![Twin Bubble Airlock and Carboy Bung (Pack of 2) - Image 4](https://m.media-amazon.com/images/I/410o4p7ZHCL.jpg)
![Twin Bubble Airlock and Carboy Bung (Pack of 2) - Image 5](https://m.media-amazon.com/images/I/416iaYbMayL.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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Effective and works as advertised.
*by D***A on December 11, 2025*

Bought these a few years ago and still using them every year to make wine. If you haven't tried it, plant some vines and go for it. It's very satisfying.

### ⭐⭐⭐⭐⭐ Good price very functional
*by M***N on December 22, 2025*

Worked aa expected

### ⭐⭐⭐⭐⭐ Quality bubblers!
*by T***Y on October 27, 2025*

Great for homemade wine making. I used these without the stopper on my primary fermenter and with the stopper on my secondary glass carboy. They are well made and work very well. I did notice the stoppers liked to slip up out of the neck of the glass carboy a little so I had to tie them down into the neck but this may be unrelated to the stopper itself.

## 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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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-01-24*