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218 Cooper St, Epping VIC 3076
📞 (03) 9422 1711
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Sat: 9 am – 1:30 pm
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Laverton North Branch
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Usually ready in 24 business hours
Unit 2/176-178 Cherry Ln, Laverton North VIC 3026
📞 (03) 9422 1711
🕐 Mon – Fri: 9 am – 3 pmSat: 9 am – 1:30 pm
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Airlocks & Gas Spunding Valves
An airlock is the cheapest bit of insurance in the whole shed. It lets the carbon dioxide out while your ferment is working and stops air, vinegar flies and dust getting back in. Watching it bubble is also how most people tell, at a glance, that things are going the way they should.
Choosing one comes down to what you are fermenting in. For demijohns and glass jars, the Ferrari cylinder airlocks are the classic Italian pattern, and the one sized for 10 to 34 litre demijohns covers most home carboys. The S-type with cap is the simple bent tube everyone recognises, and the Keg King three piece pulls apart for cleaning, which matters more than people expect once a ferment has blown through it. For a plastic fermenter or a jar lid, the Mangrove Jacks top hat grommet gives you a proper seal to push the airlock into. On stainless tanks it is a different job. The brass and stainless steel airlock extensions with 32mm inside diameter thread into the tank lid, with a 1.25 inch BSP lock nut to suit, and the large 28cm Ferrari cylinder holds enough water for a barrel or tank. There is also a two way vent for variable capacity lids.
Use a sulphite solution in the airlock rather than plain water. It does not go furry. Laverton North and Epping. See also fermenters and accessories, bungs and stoppers and demijohns and carboys.
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$3.50 AUD
Product Overview
Introducing the Airlock S-Type, the ultimate tool for perfecting your homebrewed beer. This elegant airlock boasts a sophisticated design that creates the perfect seal for optimal fermentation. Suitable for silicon bungs with an 8mm bore, this airlock is ideal for beer, cider, wine, and other fermentation processes, allowing for easy monitoring and maintaining the purity of your brew.
Technical Specifications:
- Model: Airlock S-Type Twin Chamber with Cap
- Operation: Manual use with fermenters
- Material: Clear polypropylene with cap
- Capacity: Fits silicon bungs with an 8mm bore
- Size and Weight: 165 mm in height
- Included Components: Twin chamber airlock unit with cap
Key Features:
- Twin Chamber Design: Efficiently allows CO2 to escape while preventing oxygen and contaminants from entering, ensuring optimal fermentation conditions.
- Clear Plastic with Cap: The transparent material provides easy visibility for monitoring fermentation activity, and the cap protects against dust and particles.
- Perfect Seal for Fermentation: The design ensures a secure fit, maintaining the integrity of the fermentation process.
- Easy to Clean: The straightforward design makes cleaning simple and effective.
- Versatile Use: Ideal for secondary fermentation in home beer, cider, winemaking, and other fermentation processes.
Safety and Material Quality:
This airlock is designed for durability and effective performance and is made from robust, clear polypropylene. It is safe for food use and ensures a tight seal to prevent contamination.
Cleaning and Maintenance:
Fill the airlock with pre-boiled water or a sanitizing solution before use. Regularly check for moisture levels, particularly in refrigerated fermenting environments, to ensure optimal operation.
From $24.00 AUD
The Airlock Two-Way Vent from Algor is designed for Variable Capacity lids, compatible with tank lid kits ranging from 100 to 1000 liters. This vent ensures effective airflow control, helping to maintain optimal pressure and freshness inside your tanks. Its two-way design prevents moisture buildup and supports efficient ventilation, making it a reliable addition for variable-capacity storage solutions.
Comes in two sizes: 42mm and 47 mm
$5.90 AUD
The Italian Airlock cylinder Clear Plastic - 3 Piece is an essential tool for any wine or beer maker. Its 9 mm barb allows for the easy escape of excess carbon dioxide while preventing air from entering. With its shorter design, cleaning is a breeze.
$4.50 AUD
Designed to fit 10 to 34-liter demijohns, this AIRLOCK cylinder and cap provide an effective seal that allows gases to escape while preventing contaminants from entering. Ideal for homebrewing and fermentation processes, it ensures a controlled environment to promote consistent results and protect your brew. Durable and easy to install, it helps maintain the quality and safety of your fermenting liquids.
$3.90 AUD
The 3-Piece airlock is the best choice for the primary fermenter, since it comes apart for easy cleaning in the event of a blow-off. Fill to the line with boiled water or sanitiser to create a closed fermenting system that allows CO2 to escape, but does not allow air back in to contaminate your beer or wine.
$25.00 AUD
A brass airlock extension for a tank lid. It gives you extra height on the lid for fitting an airlock. It also creates additional height for the airlock's water seal, helping maintain optimal protection for your wine, beer, cider, or other fermented products.
Sold as one piece in brass. Measure the opening in your lid before ordering, since the fit comes down to those two diameters.
Approximate Dimensions
- Thread Diameter: 4 cm
- Internal Diameter: 3.2 cm
Customer Notice
- Sold on its own, with no airlock included
- Brass colour can change over time
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Please note that thread sizes on tank lids can vary between manufacturers. We recommend checking your tank's thread specifications before purchase to ensure compatibility
Large plastic airlock for stainless steel variable-capacity tanks.
Approximate Dimensions:
- Length: 28 cm
- Bottom Diameter: 2.8 cm
- Top Diameter: 3.5 cm
Customer Notice
Please note that the colour of the item may vary from batch to batch, as the manufacturer may change it without notice.
$2.80 AUD
Top Hat Grommet fits into a drilled or punched hole in your fermenter lid. This allows for a standard handy or bubbler airlock to fit securely into the fermenter, with an airtight seal.
$11.00 AUD
A lock nut, 1.25 inch female at 32 mm BSP, listed as suiting an airlock extension. Lock nuts are the part everyone loses and nobody stocks, which is exactly why we keep them on the shelf.
Thread sizes are worth measuring rather than eyeballing. Check yours is 32 mm BSP before ordering, or bring the fitting in and we'll thread it on to be sure.
This stainless steel airlock extension set is supplied as a convenient five-piece kit and is designed to raise the airlock above your tank lid for improved accessibility and monitoring during fermentation.
By lifting the airlock clear of the lid, the water seal remains easily visible, allowing you to quickly check fermentation activity without obstruction. The extension also provides added strength and durability compared to standard fittings, making it ideal for regular use in wineries, breweries, and other fermentation applications.
A key benefit of this extension is that it allows samples to be taken from the tank without removing the lid, helping to maintain a sealed environment and reducing the risk of oxygen exposure.
Approximate Dimensions
- Thread Diameter: 40 mm
- Internal Diameter: 32 mm
Customer Notice
- Sold on its own, with no airlock included
-
Please note that thread sizes on tank lids can vary between manufacturers. We recommend checking your tank's thread specifications before purchase to ensure compatibility
$29.00 AUD
This solid brass airlock extension raises your airlock above the tank lid, providing extra clearance for easier access and handling during fermentation. It also creates additional height for the airlock's water seal, helping maintain optimal protection for your wine, beer, cider, or other fermented products.
Supplied with a high-quality BDSMO O-ring, which forms a secure seal to help prevent oxygen from entering the tank while allowing carbon dioxide produced during fermentation to escape.
Approximate Dimensions
- Thread Diameter: 40 mm
- Internal Diameter: 32 mm
Customer Notice
- Sold on its own, with no airlock included
- Brass colour can change over time
-
Please note that thread sizes on tank lids can vary between manufacturers. We recommend checking your tank's thread specifications before purchase to ensure compatibility
$79.90 AUD
A stainless steel airlock extension fitting for a tank lid with a 32mm internal diameter, from the premium range. It raises the airlock clear of the lid.
Sold as the fitting. If your lid opening is a different size then this is not the one, so send us the measurement and we will check what else we hold at Laverton North and Epping.
$64.90 AUD
A four-piece stainless steel airlock extension fitting for a tank lid, 32mm internal diameter, from our premium line and made in Australia. The four pieces come together as one set.
Sold complete. Measure the hole in your lid before ordering, since 32mm ID is what this one is built around.
Approximate Dimension
- Internal Diameter: 32 mm
- External Diameter: 40 mm
Frequently asked questions
What does an airlock do?
An airlock lets carbon dioxide escape from a fermenter or demijohn while keeping air, insects and wild yeast out. Fill it to the line with water or a sanitiser solution.
S-type or cylinder airlock: which is better?
Both work well. The S-type shows the bubbling clearly. The cylinder type, including the Italian cylinder airlock with float, comes apart for easy cleaning. Pick whichever fits your bung or lid.
How do I fit an airlock?
Push it into a bored bung or the grommet in your fermenter lid so it seals snugly. Check the hole size before you buy; we stock rubber and silicone bungs (bored and solid) and lid grommets to match.
What is a spunding valve?
A spunding valve holds a set pressure in a pressure fermenter or keg, releasing anything above it. Brewers use it to carbonate beer naturally during fermentation.
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