These popular caps fit plain end culture tubes and flasks with DeLong style necks or ports. The caps are molded from durable, autoclavable polypropylene (PP). They are available in a full range of five sizes and five colors for easy sample identification and organization. Recommended tube diameter is indicated on each cap.
• Polypropylene (PP) • Autoclavable • Ridges inside cap provide secure grip and gas exchange • Available in five sizes and five colors • Maintain sterility without cotton plugging • Reduce sample evaporation compared to cotton plugging • Provide same evaporation and sterility benefits as stainless steel closures
