Specification Brand : GUZE-US BulletPoint : Height 5 3/8". Outer diameter 2 7/8". Stem outer diameter 23/32". Stem inner diameter 9/16". BulletPoint1 : 【Upgraded ultra-clear airlock】GUZE-US airlock it is stronger, more transparent, and made of food grade material. You can easily see the whole fermenting process and they can last for a long time because they are top of the line FDA transparent airlocks! BulletPoint2 : 【Dust cap design, good airtightness】Airlocks for fermenting has good airtightness to make fermentation easier, can effectively isolate the air and prevent oxidation, and wears an airlock dust cap to avoid fruit flies from falling in. Automatic exhaust at room temperature, no need for manual control. BulletPoint3 : 【Widely used】The fermentation airlock can be used in various fermentation projects to preserve food. As brewing airlock, it can brew craft beer, wine, sauerkraut, kimchi, cider, fruit wine, rice wine, broccoli, carrot and ginger, kimchi, etc. BulletPoint4 : 【Package Contents】 4 airlocks for fermenting and 4 airlock dust caps, size: 6.7in/17cm high. 4 No.6 fermentation plugs, size: top diameter 1.57in/4cm, bottom diameter 1.18in/3cm, height 1.18in/3cm. 8 airlock grommets, size: inner ring diameter 0.39in/1cm, the outer ring diameter is 0.59in/1.5cm, sufficient quantity as a backup, the price is right. BulletPoint5 : 【Easy to clean, sturdy and durable】GUZE-US airlock is made of high quality material, upgraded design, more transparent, more sturdy, able to watch the whole process of brewing. And it's easy to clean and reusable! Color : Transparent Color ExternallyAssignedProductIdentifier : 00850026602425 ExternallyAssignedProductIdentifier1 : 811088016827 ExternallyAssignedProductIdentifier2 : 0811088016827 ExternallyAssignedProductIdentifier3 : 00811088016827 ExternallyAssignedProductIdentifier4 : 0696737750471 ExternallyAssignedProductIdentifier5 : 0735533528041 ExternallyAssignedProductIdentifier6 : 0793842255669 ExternallyAssignedProductIdentifier7 : 00735533528041 GpsrSafetyAttestation : 1 ItemDisplayWeight : 0.03 pounds ItemName : Airlocks for Fermenting, Brewing Supplies, Super Transparent Upgraded Version of 4 Fermentation Airlock, 4#6 Stoppers and 8 Airlock Grommets, Used for Brewing Wine, Beer, Sauerkraut, Pickles, Etc ItemPackageDimensions_Height : 21.0058 centimeters ItemPackageDimensions_Length : 4.4958 centimeters ItemPackageDimensions_Width : 16.6116 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : brewing-and-venting-airlocks Manufacturer : GUZE-US Material : Plastic MaximumPressure : 100 pound_per_square_foot ModelNumber : GUZE-US-airlock NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : GUZE-US-airlock ProductDescription : Airlocks for Fermenting, Brewing Supplies, Super Transparent Upgraded Version of 4 Fermentation Airlock, 4#6 Stoppers and 8 Airlock Grommets, Used for Brewing Wine, Beer, Sauerkraut, Pickles, Etc ProductSiteLaunchDate : 2023-12-23T09:50:21.144Z StreetDate : 2017-07-29T00:00:01Z SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 43211706