500PCS 10mL Clear Glass Vials Lab Headspace Vials 20mm Crimp top Flat Bottom

100PCS 20ml Scintillation Vials Counting Vials HDPE Plastic Clear Sample Vials. The Crimp Top are standard 20mm. A 20mm vial crimper(Not Provided) is required to fully seal the aluminum cap. These vials are made of borosilicate glass of uniform thickness, flat bottom for even heat distribution,resistant to high and low temperatures.