SKS Science Products Blue Glass Vials w/ Orifice Reducer 4063-54B

The blue cobalt glass screw thread vials come with orifice reducers and black phenolic PV lined closures. The blue cobalt glass vials are offered in a 5/8-dram and 1 dram size. Orifice reducers provide an ideal control for minute liquid droplets. The cobalt tinted glass provides a shield against certain ultraviolet rays to deter sample degradation