# Best Airlocks for Homebrewing (2026) Source: https://homebrewcraft.com/best/airlocks Updated: 2026-09-14 Publisher: Home Brew Craft. Our score is an editorial rating out of 10 (fit 35%, features 25%, build 20%, value 20%), not a customer rating. Method: https://homebrewcraft.com/how-we-research#our-score An airlock is the small valve that lets fermentation CO2 escape while blocking air and contaminants from reaching your beer. The two common styles are the three-piece airlock, which is easy to disassemble and clean, and the S-shaped bubbler, which is simple and lets you watch fermentation activity at a glance. Both work well when filled to the line with sanitizer or water. The main fit consideration is the stopper or grommet, which must seal snugly in your fermenter lid or carboy neck. Every brewer who ferments in a sealed vessel needs an airlock, so it is truly universal gear. Three-piece designs are easier to clean and refill, which appeals to brewers who like to inspect parts, while S-locks are foolproof for beginners. Keep a couple of spares, since they are inexpensive and easy to misplace. Match the airlock to your stopper size, top it off with sanitizer, and remember that bubble rate indicates activity but is not a precise gauge, so trust your hydrometer for real fermentation progress. ## Picks ### 1. Brewland 6 Packs 3 Piece Airlocks for Fermenting with #6 Stoppers and Grommets Our score: 8.6/10 (Fit for the job 9/10 · Features and specs 9/10 · Build and materials 7/10 · Value 9/10) Brewland's 6 Packs of 3 Piece airlocks with #6 stoppers and grommets for fitting buckets and carboys. Pros: - 6 Packs gives airlocks for multiple fermenters plus spares - Includes #6 stoppers and grommets for both carboys and bucket lids - 3 Piece design comes apart fully for easy cleaning Cons: - #6 stoppers do not fit wider carboy necks that need larger bungs - 3 Piece airlocks can let sanitizer suck back during cold crashes Details: https://homebrewcraft.com/product/B092QS48TJ ### 2. Molovee 3-Piece Airlock Fermentation Beer Wine Brewing Air Locks 3Pack with Silicone Grommets Our score: 7.8/10 (Fit for the job 8/10 · Features and specs 8/10 · Build and materials 7/10 · Value 8/10) Molovee's 3Pack of 3-Piece airlocks with silicone grommets for beer and wine fermentation. Pros: - Silicone grommets seal well on bucket lids and stay flexible - 3-Piece airlocks are easy to disassemble and sanitize - 3Pack covers a few fermenters for small batch brewers Cons: - No stoppers included, so carboy users need to buy bungs - Thin plastic parts can crack if dropped on a hard floor Details: https://homebrewcraft.com/product/B095BXVM7Y ### 3. 3 Piece Airlock Set for Brewing Wine Making Kimchi (3 Airlock+3 Stoppers+6 Grommets) Our score: 7.8/10 (Fit for the job 8/10 · Features and specs 8/10 · Build and materials 7/10 · Value 8/10) A 3 Piece airlock set with 3 Airlock, 3 Stoppers and 6 Grommets for brewing, winemaking and kimchi. Pros: - 3 Stoppers and 6 Grommets cover jars, carboys and bucket lids - Useful for kimchi and vegetable ferments as well as beer and wine - Full set means fewer trips for missing fittings Cons: - Check the stopper size fits your jars and carboys before ordering - Generic airlocks may have looser caps than brand name ones Details: https://homebrewcraft.com/product/B0CKWV8917 ### 4. SocalHomeBrew Plastic 3 Piece Airlock (Pack of 3) Our score: 7.6/10 (Fit for the job 8/10 · Features and specs 7/10 · Build and materials 7/10 · Value 8/10) SocalHomeBrew's Pack of 3 plastic 3 Piece airlocks, a basic airlock refill for homebrew fermenters. Pros: - Pack of 3 provides spares for multiple fermenters - Simple 3 Piece design is easy to fill and clean - Standard size fits common grommets and drilled stoppers Cons: - No grommets or stoppers included in the pack - Cap can pop off during very vigorous fermentation Details: https://homebrewcraft.com/product/B000E60G2W ### 5. 3 Piece Airlock 4 Pack with Grommets for Brewing Wine Making Kimchi Our score: 7.6/10 (Fit for the job 8/10 · Features and specs 7/10 · Build and materials 7/10 · Value 8/10) A 4 Pack of 3 Piece airlocks with grommets for brewing, wine making and kimchi fermentation. Pros: - 4 Pack keeps spare airlocks on hand for several fermenters - Grommets included for sealing bucket lids and mason jar lids - Works for vegetable ferments as well as beer and wine Cons: - No drilled stoppers, so glass carboys need separate bungs - Plastic caps can warp if washed in very hot water Details: https://homebrewcraft.com/product/B0CPX9SG5Q ### 6. 3-Piece Airlock 4 Pack Brewing & Fermentation Airlocks with Drilled Rubber Stopper Our score: 7.6/10 (Fit for the job 8/10 · Features and specs 7/10 · Build and materials 7/10 · Value 8/10) A 3-Piece airlock 4 Pack with drilled rubber stoppers for brewing and fermentation in carboys and jugs. Pros: - Drilled rubber stoppers fit airlocks straight into carboy necks - 4 Pack covers several fermenters at once - Rubber stoppers grip glass well for a tight seal Cons: - Check the stopper size matches your carboy neck before ordering - Rubber can pick up odors from strong ferments over time Details: https://homebrewcraft.com/product/B0B47KX1WX ### 7. Craft A Brew The Hex 3 Piece Airlock for Home Brew Fermentation Our score: 7.2/10 (Fit for the job 7/10 · Features and specs 7/10 · Build and materials 8/10 · Value 7/10) Craft A Brew's The Hex 3 Piece airlock, a distinctive hexagonal airlock for home brew fermentation. Pros: - Hex shape resists rolling off the counter during cleaning - 3 Piece design comes apart for thorough sanitizing - Craft A Brew build matches its fermenter kits Cons: - Single airlock, so multiple fermenters need several purchases - Check whether stoppers or grommets are included before ordering Details: https://homebrewcraft.com/product/B0BYBBHLL7 As an Amazon Associate I earn from qualifying purchases.