50pcs Airlock Sealing Ring Lid Grommets Home Brew Beer Spirit Wine Fermenter

High-temperature resistant. It could withstand Not over 300 F.
Work with the airlock, and make a perfect air-tight seal to keep bugs/bacteria/ oxygen from getting in your fermenter. That will help maintain the ferment for a longer period.
The fermenter grommets are great for airlocks & plastic buckets lids & straws.

• Size:10*18*7MM
• Colour: black

Package Includes: 50pcs Grommets (NOT include airlock)