Vials, screw top, clear glass (vial only) volume 40 mL, clear glass, thread 24-400, O.D. × H 27.5 mm × 95 mm, pkg of 100 ea | EPA water testing vials supplier-EPA storage vials for sale white polypropylene cap (15mm center hole), tan PTFE/silicone, thickness 3.2 mm, thread 24-400, for use with 20 or 40 mL vial .