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20 mL (5 dram) Amber Glass Vials, Black Cone Lined Caps. Amber vials offer protection from harmful light and UV rays for light sensitive products. 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.

Attached Black Phenolic caps with Polyseal cone liners form an exceptionally tight seal and offer a good chemical barrier. This liner molds itself around the sealing areas of the finish as the cap is screwed on, virtually eliminating leakage, evaporation, contamination, binding and backing off. Old Part# QP-2516B, New Part# QP-GLC-01061

Typically ships from Pennsylvania. Call (888) 322-5722 for availability.