Red Rubber/PTFE Aluminum Crimp Top

These 12x32mm crimp top large opening vials are excellent for long term storage. The clear vials are a Type 1 Class A (33 expansion) while the amber vials are a Type 1 Class B (for light sensitive products). They are produced with the highest quality silicone septa and elastomer products in the world with the lowest level of extractable anywhere. The crimp tops require a crimper and decapper. Packaged in packs of 100 with 10 packs per case.