Best Rubber Fermentation Airlocks of 2025

The Home Brew Airlocks come in a convenient pack containing two bored rubber bungs and two bubbler airlocks, perfect for home brewing enthusiasts. The standard-sized, reusable rubber bungs are designed specifically for glass demi-johns, ensuring a snug fit that accommodates the airlock. By simply adding water to the airlock, you can easily monitor the fermentation process of your beer or wine through visible bubbles. This feature not only provides peace of mind but also allows you to enjoy the brewing experience without constant checking.

The Almost Off Grid Bungs are designed specifically for fermentation processes like wine making, beer brewing, and cider fermenting. Each pack includes three rubber bungs that feature a bored hole, allowing you to easily fit a standard airlock. This setup ensures a safe fermentation environment by allowing gases to escape while preventing contamination. Additionally, these bungs are reusable and fit standard-sized demijohns, adding convenience to your homebrewing experience.

The Betterbrew Airlock Set includes three demijohn rubber bungs and a six-chamber bubbler airlock, perfect for your brewing needs. By simply adding a bit of water to the airlock, you can easily monitor the fermentation process. The dimensions of the bungs ensure a snug fit, with the top measuring 31mm and the base 26mm. Made from clear plastic, the bubbler airlock allows you to observe bubbles as a sign of active fermentation, providing reassurance that your beverage is on the right track.

The Almost Off Grid Airlock Set is designed to fit standard 1 gallon, 4.5 litre, and 6 bottle glass demijohns, ensuring versatility for your homebrewing needs. With loose fitting red caps, the bubbler airlocks effectively keep dust at bay, providing a clean environment for fermentation. You simply need to add water to the airlock and securely press it into the rubber bung, which is also easy to fit into the demijohn neck. This straightforward process allows you to focus on the exciting part—waiting for fermentation to begin!

The Almost Off Grid Airlocks offer a complete set for home brewing enthusiasts. This package includes six high-quality rubber bungs and six chamber plastic airlocks, ensuring compatibility with standard glass demijohns. The bungs measure 31mm at the top and 26mm at the base, making them a perfect fit. These airlocks effectively release CO² during fermentation while preventing contamination, providing you with peace of mind as you create your wine, beer, cider, or mead.

The Fermentation Airlocks Set is designed for home brewing enthusiasts. Made from high-quality BPA-free polypropylene, these airlocks ensure safe fermentation of your wines and beers. The food-grade rubber stoppers provide a secure seal, keeping your brew protected. Using these airlocks is straightforward; simply attach the silicone stopper, add water, and close the lid to prevent insects from contaminating your brew. This set simplifies the fermentation process by isolating air, preventing oxidation, and allowing for automatic fermentation without constant monitoring.

The DIAH Fermentation Airlocks are essential for anyone looking to brew their own beer, wine, or cider at home. This set includes six fermentation airlocks and six bored bungs, designed to fit a variety of glass demijohns. The airlocks allow carbon dioxide to escape while preventing outside air from contaminating your brew, ensuring a clean fermentation process. The attached rubber bungs are safe and versatile, making them suitable for different fermentation vessels. With this product, you can enjoy a hassle-free brewing experience.

The Almost Off Grid Airlocks are designed to enhance your fermentation process. These reusable rubber bungs ensure a perfect fit, providing an airtight seal that protects your ferment from contamination. The handy airlocks operate quietly, allowing you to ferment without disruptive noise. Their two-piece design fits snugly into the bored rubber bung hole, ensuring that your ferment is well-protected. With these features, you can enjoy peace of mind knowing your fermentation is secure and efficient.

The Almost Off Grid Airlocks are essential for home brewing enthusiasts. These high-quality rubber bungs and plastic airlocks allow you to easily manage fermentation in both demijohns and buckets. They effectively release CO² during the fermentation process while preventing any unwanted contaminants from entering your brew. Designed to fit standard-sized demijohns, these reusable airlocks provide convenience and peace of mind, allowing you to enjoy brewing wine, beer, cider, or mead without hassle.

The Brewing Mate Airlock Set is essential for home brewing enthusiasts. This set includes two durable plastic airlocks, designed to withstand heavy use and prevent breakages. The silicon bungs offer a tighter seal compared to rubber, keeping airborne bacteria away from your wine, cider, or mead. Additionally, the airlocks allow excess carbon dioxide to escape, ensuring optimal fermentation conditions. This means you can enjoy perfect results every time you brew.