20 mL (5 dram) Amber Glass Vials, No Caps. Amber vials offer protection from harmful light and UV rays for light sensitive products. 27.75 x 57mm, 5 dram (20ml) Amber Borosilicate Glass Vial with 24-400 neck finish. Made of Type I Borosilicate glass, providing exceptional resistance to heat shock and chemical leaching. The glass is non-porous and has no catalytic affect. Because the boron oxide particles in the glass are so small, the silicate is held more closely together, resulting in a much stronger glass for your laboratory needs. Purchase caps separately.
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