20 mL Standard Pre-Assembled EPA Vial (100/pk)

24 mL clear screw-top EPA vial, pre-assembled with open-hole polypropylene cap and PTFE/silicone seal. Vial is made of type 1 borosilicate glass. The seal is bonded to the open-hole polypropylene cap using a proprietary process without glue, so it cannot fall out.