Material Aluminum for Cap, PTFE/Silicone for Septa Package 100pcs/Pack Cap type Open top Septa type Non-slit, Pre-slit Description 1.5 ml vials from Aijiren Technology, Inc with high quality and favorable price. Zhejiang Aijiren is a manufacturer of Laboratory consumables. We supply autosampler vials, septa and caps at factory price. 1.