Specification Brand : BEST VALUE VACS BulletPoint1 : 10.75" - Can Fit lids 10.75" in diameter and up to 3/4" in thickness BulletPoint2 : 12.75" -Can Fit lids 12.75" in diameter and up to 1" in thickness ExternallyAssignedProductIdentifier1 : 0718127911566 ExternallyAssignedProductIdentifier2 : 718127911566 ItemName : BVV Universal Vacuum Chamber Gasket Size 12.75" x 1" ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : science-lab-vacuum-chambers Manufacturer : BEST VALUE VACS Material : Silicone NumberOfItems : 1 PartNumber : 1275UG ProductDescription : This vacuum chamber gasket is made out of durable and heat-resistant silicone. It features a large flange on a single side so the user can adapt one of our lids to varyingly sized vessels. ProductSiteLaunchDate : 2014-07-18T20:25:44.492Z Size : 12.75" x 1" Style : 12.75" x 1"