The Snap Seal™ Vial can be securely sealed with the patented Poly Crimp™ Seal, an aluminum crimp seal or a variety of Snap Top Cap™ designs. More glass in the neck area minimizes breakage of the neck during decapping. Vial incorporates the unique StepVial design that precisely centers a limited volume insert in the vial neck, assuring dependable, reliable use with autosamplers. Choose from clear or amber Type I borosilicate glass. Available with graduated marking spots which provides the ability to fill a sample vial to a desired level and facilitates viewing sample volumes.