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1.8 mL, 9 mm Clear Screw Combo Pack PTFE/Sil/PTFE (100/pk)
Brand: Chromatography Research Supplies Inc123242 - 12x32 mm, with a wide-mouth design. It is made from Type 1 borosilicate glass. Excellent for long term storage.309045 - 9 mm Screw Cap pre-stuffed with PTFE/Silicone/PTFE seal.
