Sigma glass vials with caps in amber for HPLC for sale 2ml Amber HPLC Screw Vials with Blue Caps for Sale--Lab Vials The 2ml HPLC Screw Vials are made from clear/ amber, Type I borosilicate and 33 expansion glass.2ml Amber HPLC Screw Vials with unique thread design ensures consistent seal and can be reused, not volatile, easy to use, Reduce the chances of bent