--- product_id: 276840 title: "Fastrack Twin Bubble Airlock and Carboy Bung (2-Pack) | Fermentation Airlocks for Homebrewing Beer, Wine, Mead, and Kombucha" price: "Β£6.77" currency: GBP in_stock: true url: https://www.desertcart.co.uk/products/276840-fastrack-twin-bubble-airlock-and-carboy-bung-2-pack-fermentation store_origin: GB region: United Kingdom --- # 2-pack twin bubble airlocks for dual fermentation transparent food-grade plastic for easy monitoring airtight design prevents oxidation & contamination Fastrack Twin Bubble Airlock and Carboy Bung (2-Pack) | Fermentation Airlocks for Homebrewing Beer, Wine, Mead, and Kombucha **Price:** Β£6.77 **Availability:** βœ… In Stock ## Summary > 🍻 Brew Boldly, Ferment Fearlessly! ## Quick Answers - **What is this?** Fastrack Twin Bubble Airlock and Carboy Bung (2-Pack) | Fermentation Airlocks for Homebrewing Beer, Wine, Mead, and Kombucha - **How much does it cost?** Β£6.77 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/276840-fastrack-twin-bubble-airlock-and-carboy-bung-2-pack-fermentation) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Dual-Pack Efficiency:** Two airlocks and universal bungs included for seamless batch control. - β€’ **Crystal Clear Monitoring:** Transparent, food-grade plastic lets you track fermentation progress at a glance. - β€’ **Trusted Quality & Support:** Backed by Fermtech’s legacy since 1987 with responsive customer care. - β€’ **Versatile Fermentation Use:** Perfect for beer, wine, mead, kombucha, and even fermented foods like kimchi. - β€’ **Effortless Pressure Release:** Automatically vents CO2, eliminating manual adjustments and reducing risk. ## Overview The FastRack Twin Bubble Airlock and Carboy Bung 2-Pack offers homebrewers a reliable, airtight fermentation solution crafted from durable, transparent food-grade plastic. Designed to automatically release CO2 while preventing oxygen entry, these airlocks simplify monitoring and ensure optimal fermentation for beer, wine, mead, kombucha, and fermented foods. Each pack includes two airlocks and universal-fit bungs, combining versatility with trusted Fermtech quality since 1987. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00A6TRKO4 | | Best Sellers Rank | #12,968 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #4 in Brewing & Fermentation Airlocks | | Brand | FastRack | | Brand Name | FastRack | | Color | Clear/Tan | | Customer Reviews | 4.6 out of 5 stars 13,857 Reviews | | Global Trade Identification Number | 00825392000052 | | Included Components | Airlock and Stopper (Pack of 2) | | Is Customizable | No | | Is Customizable? | No | | 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 Grams | | Manufacturer | Fermtech | | Manufacturer Part Number | B00A6TRKO4 | | Material | Plastic, Rubber | | Material Type | Plastic, Rubber | | Model Number | B00A6TRKO4 | | Number of Items | 2 | | Product Dimensions | 3.15"L x 1.97"W | | UPC | 628504292792 825392000052 | | Unit Count | 2.0 Count | ## Product Details - **Brand:** FastRack - **Color:** Clear/Tan - **Is Customizable:** No - **Item Weight:** 30 Grams - **Manufacturer:** Fermtech - **Material:** Plastic, Rubber - **Number of Packs:** 2 - **Product Dimensions:** 3.15"L x 1.97"W - **UPC:** 628504292792 825392000052 - **Unit Count:** 2.0 Count ## Images ![Fastrack 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) ![Fastrack Twin Bubble Airlock and Carboy Bung (2-Pack) | Fermentation Airlocks for Homebrewing Beer, Wine, Mead, and Kombucha - Image 2](https://m.media-amazon.com/images/I/51Y-8lnz-yL.jpg) ![Fastrack Twin Bubble Airlock and Carboy Bung (2-Pack) | Fermentation Airlocks for Homebrewing Beer, Wine, Mead, and Kombucha - Image 3](https://m.media-amazon.com/images/I/512gF1jTHnL.jpg) ![Fastrack Twin Bubble Airlock and Carboy Bung (2-Pack) | Fermentation Airlocks for Homebrewing Beer, Wine, Mead, and Kombucha - Image 4](https://m.media-amazon.com/images/I/416iaYbMayL.jpg) ![Fastrack Twin Bubble Airlock and Carboy Bung (2-Pack) | Fermentation Airlocks for Homebrewing Beer, Wine, Mead, and Kombucha - Image 5](https://m.media-amazon.com/images/I/61ZDaeRR8XL.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 --- ## 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.co.uk/products/276840-fastrack-twin-bubble-airlock-and-carboy-bung-2-pack-fermentation](https://www.desertcart.co.uk/products/276840-fastrack-twin-bubble-airlock-and-carboy-bung-2-pack-fermentation) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-16*