4ml screw-top brown chromatography sample vial, standard volume: 4ml. There are two colors: amber and clear. Made of hydrolyzed glass (Class 1 borosilicate glass). Inner packing shrink plastic box, outer packing carton, 100 pcs/box. Set includes 15*45mm vial, 13*1.5mm Teflon/silicone septum, 13mm polypropylene cap.
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