CellPro™ Screw Cap Culture Tubes provide dependable performance for sample containment, culturing, and storage across microbiology, clinical diagnostics, and research laboratories. Manufactured from high quality glass, these tubes offer excellent clarity, durability, and resistance to common laboratory chemicals. Each tube includes a phenolic screw cap with a silicone rubber liner that forms a secure, leak resistant seal, helping protect valuable samples and reagents during storage and handling. The integrated white marking area allows easy labeling and accurate sample identification in busy laboratory environments. A round bottom design supports efficient mixing and improved sample interaction, making these culture tubes ideal for microbial culture growth, reagent preparation, and routine laboratory procedures.