10pcs Silicone O Ring Super Seal For Wine Beer Brewing Mason Jar Fermentation Airlock Lids Grommet

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Set Include: 10x Grommets
Condition: Brand New
Material: Silicone
Color: Black(as pictures show)

Silicone Grommets for Mason Jar Fermentation Airlock Lids.
Made of thicker silicone, BPA free, durable and long lasting.
The washer will help maintain the ferment for a longer period.
An airlock can be inserted in the grommet, fits airlock perfectly.
Work with the airlock, makes a perfect air-tight seal to keep bugs/bacteria/oxygen from getting in your fermenter.

External diameter: approx. 15mm/0.6″. Internal diameter: approx. 8mm/0.3″, Height: approx. 8mm/0.3″

Friendly Tips: The size is measured by hands, please allow minor error of measurement. Photo color might be a little different from the actual product due to color display of different monitors.

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