Diamond Culture Tube Cap for 13mm Glass Culture Tubes, PP, Green, 100/Bag

• Fit plain end culture tubes and flasks with DeLong style necks or ports
• Molded from durable, autoclavable polypropylene (PP)
• Ridges inside cap provide secure grip and gas exchange
• Available in five (5) colors for easy sample identification and organization
• Maintain sterility without cotton plugging
• Reduce sample evaporation compared to cotton plugging
• Provide same evaporation and sterility benefits as stainless steel closures

Recommended for use with Globe Scientific Culture Tube, Borosilicate Glass, 13 x 100mm, 10mL