2-Piece Airlock 5-Pack with 3PCS #6 Stoppers, 5pcs Silicone Loops & 10PCS Grommets – Complete Fermentation Kit for Home Brewing Beer, Wine, Kombucha, Sauerkraut, Kimchi & More

Achieve professional-grade fermentation results at home with our comprehensive 5-Pack 3-Piece Airlock Set. Engineered for reliability and versatility, this complete kit provides the essential airtight sealing solution for a wide variety of fermenting vessels and projects Perfect Fit, No Guesswork: The included #6 solid rubber stoppers are sized to create a snug, airtight seal in the most common fermentation openings—specifically vessels with a 1 1/8” (26-28mm) inner diameter neck. This covers a wide range of popular glass carboys and fermentation jugs. For sealing mason jar fermentation lids, simply drill a clean 1/2” hole and use one of the 10 included rubber grommets for a perfect, leak-free fit every time. How It Works & Why It Matters: During fermentation, yeast and bacteria produce carbon dioxide (CO2). The three-piece airlock allows this gas to bubble out safely through the water or sanitizer barrier, while simultaneously preventing oxygen and airborne contaminants from entering the vessel. This “one-way valve” action is critical for preventing spoilage, off-flavors, and ensuring a healthy, anaerobic fermentation environment for your beer, wine, vegetables, or kombucha. Designed for Convenience & Durability: Easy Assembly & Monitoring: The clear, durable plastic lets you easily see bubble activity, which is a helpful visual indicator of fermentation progress. Pro-Tip for a Secure Seal: For the most secure fit with rubber stoppers, make sure both the stopper and the inside neck of your fermenter are dry before assembly to prevent slipping. Hygienic & Reusable: All components are easy to take apart, sanitize, and reuse batch after batch. Their sturdy construction ensures they remain a dependable part of your brewing toolkit for years.

• Complete 5-Pack Set for Multiple Batches: Everything you need in one value kit. Includes 5 three-piece airlocks, 5 matching #6 solid rubber stoppers, 5 red silicone sealing loops, and 10 versatile grommets. Perfect for starting or replenishing your home fermentation supplies.
• Precision Fit for Common Fermenters: The #6 rubber stopper (top Ø 32mm / bottom Ø 26mm) is designed to seal securely in openings with an inner diameter of approximately 1 1/8" (26-28mm). Ideal for glass carboys, growler jugs, and fermentation buckets. For mason jar lids, use the included grommet with a standard 1/2" drilled hole.
• Maintains a Protected Anaerobic Environment: The classic 3-piece airlock design allows CO2 to escape during active fermentation while effectively blocking outside air, dust, bacteria, and contaminants. This helps create and maintain the clean, oxygen-free atmosphere essential for successful brewing and fermenting.
• Simple to Use & Easy to Clean: Assemble and install in seconds. For best results, ensure the stopper and fermenter neck are dry before inserting. Fill the airlock with water or sanitizer up to the fill line. The design disassembles completely for thorough cleaning and is built for repeated, long-term use.
• Versatile for All Your Fermentation Projects: A reliable essential for making homemade beer, wine, mead, hard cider, kombucha, and fermented foods like sauerkraut, kimchi, pickles, hot sauce, and more. A must-have tool for both beginners and experienced home fermenters.