11mm Polypropylene Snap Cap, PTFE/Butyl Rubber Lined 5240-11PP

11mm Polypropylene GC Snap Top Cap.GC Snap Top Caps were developed to handle the most volatile samples, providing a liquid airtight seal to the vial. Simply snap on the cap and an evaporation proof seal of a crimp cap is achieved. Caps can also be used on 12x32 mm Snap Seal™ vials.