HM-4488 nature PTFE/blue Silicone septa, 20mm crimp-top blue magnetic aluminum cap, 10mm centre hole HM-0838 10ml crimp headspace clear vial, flat bottom 22.5*46mm Borosilicate type 70 HM-0839 10ml crimp headspace clear vial, flat bottom 22.5*46mm USP 1 expansion 33