Crimp seal with PTFE/butyl septum (Pharma-Fix), aluminum seal, open center, PTFE-faced butyl, diam. × thickness 20 mm × 3.0 mm, pkg of 100 ea Expand View Pricing 508888 Clear glass 1.2 mL crimp top vial, flat bottom, 8 x 40 mm, volume 1.2 mL, closure