EPA Screw Cap, 24mm, White Polypropylene, Open, UltraBond Silicone/ PTFE Septa 1000/pk

Meets EPA requirements for testing environmental contaminants|Septa meet the requirements of the US Environmental Protection Agency (EPA) Caps are constructed of durable white polypropylene Select caps with UltraBond? septum to avoid sample contamination|Designed with an open cap and silicone/PTFE septa for the cleanest solution for contaminant free sample handling|These white polypropylene (PP) caps and EPA septa are free of substances that might influence sample analysis for testing of potentially harmful environmental contaminants in water or soil samples. Select from septa only, cap only, or cap and septa combination.|With the UltraBond seal system, the cap and septum form a one-piece unit. This is achieved with a patented bonding process without the use of adhesives, avoiding any form of contamination of the sample.