Product Details
The kit includes caps designed to fit plain end culture tubes and flasks featuring DeLong style necks or ports, molded from durable, autoclavable polypropylene (PP). The caps are equipped with ridges inside to ensure a secure grip and facilitate gas exchange. Available in five colors, these caps allow for easy sample identification and organization while maintaining sterility without the need for cotton plugging. They effectively reduce sample evaporation compared to traditional cotton plugging methods and provide similar benefits in evaporation and sterility as stainless steel closures.








