Clear glass vials and caps with pre-inserted PTFE/silicone septa for ease of sample preparation. Vial size is 12x32 mm, with a writing patch on the side. 1.5mL short thread vial, 1st hydrolytic class, wide opening, label and filling lines with red cap and pre-inserted silicone/PTFE, 45° shore A, 1.0mm septum. Replacement for 228-45450-91. NOTE: confirm availability with Customer Service. Stock status only reflects 1 warehouse location, so it is likely ready to ship from another site.