Amber glass vials and caps with pre-inserted PTFE/silicone septa for ease of sample preparation. The amber glass helps protect light-sensitive samples. 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 228-45452-91.