Thermo Scientific™ National 15 x 45mm Screw Thread Vials have a uniformly flat bottom for security with inserts
Original 4mL Waters WISP™ autosampler vial Superior quality borosilicate clear glass Type 1, Class A or 51A amber glass I-D™ vials feature write-on patch AP2000™ High-recovery vials feature a tapered bottom for maximum sample extraction Glastic™ vials have a glass insert fixed inside of a plastic vial Deactivated vials are available with either NSC Silanization or Kimshield™ pretreatment