Selection Results. Vial. (100/pk) Headspace crimp top vial, 10 mL, 23 x 46 mm, clear, flat bottom. Maximum recommended fill volume is ¾ full. Cap. (100/pk) Headspace crimp cap with septa, 20 mm, silver aluminum cap, molded PTFE/butyl septa. For any headspace applications using a pressure over 45 PSI, use of a safety release