The White PTFE / White Silicone Septa 20mm Crimp (Part No. HM-4481) is designed for secure and reliable sealing of laboratory vials and bottles in HPLC and other analytical applications. Made from high-quality PTFE and silicone, these septa offer excellent chemical resistance, durability, and compatibility with a wide range of solvents.
Ideal for use with 20mm crimp caps, these septa provide leak-proof sealing while allowing smooth syringe needle penetration without compromising resealing capability. They help maintain sample integrity, prevent contamination, and minimize evaporation during storage and analysis.
Widely used in pharmaceutical labs, research institutes, chemical testing, and quality control environments, HM-4481 septa ensure consistent, reliable performance in routine and critical laboratory workflows.
