WHEATON® 11mm Crimp Seal Open Top Hole Caps, Aluminum Blue, Unlined, case/1000

WHEATON® 11mm Seal, Open Top Hole Cap, Aluminum Blue, Unlined. The Unlined Aluminum Seal exposes the top of the rubber septum to the syringe. A rubber septa with rubber formulations of gray butyl, natural rubber and silicone can be purchased separately. The aluminum seal can be attached to a serum bottle or vial with a WHEATON® Crimper and easily removed with a WHEATON® Decapper.