Printed with Label and Filling Lines, these 11mm crimp neck vials are made with tightest dimensional tolerances to match leading brands like Agilent, Waters, Thermo Fisher etc. Chemically inert screw caps are made from virgin grade polypropylene and are suitable for most chromatography applications. Supplied as combo-pack with 11mm Aluminum Crimp Seals and Red PTFE + White Silicon Septa.