Sample Tube, 5mL, External Threads, PP, White Graduations & Marking Area, Round Bottom, Self-Standing

These 5mL sample tubes are designed for the secure storage and reliable transport of biological materials in laboratory and clinical settings. Manufactured from high-quality, non-toxic polypropylene (PP), the tubes offer excellent strength, durability, and clarity for easy sample visibility and identification.

The external thread design provides a smooth and uniform inner surface, helping to reduce the risk of contamination. Each tube features clearly visible white graduations and a dedicated marking area for accurate measurement and easy labeling. The round bottom supports efficient sample handling, while the self-standing design adds stability during use and storage.

Compatible screw caps (sold separately) are also made from polypropylene, ensuring the same coefficient of expansion as the tubes. Combined with an inner sealing lip, they provide a secure, leakproof seal even under fluctuating temperature conditions. The caps feature a long skirt and a quick-turn thread design, allowing for fast and convenient sealing or removal. Optional silicone O-ring caps are available for enhanced sealing performance.

Ideal for research laboratories, diagnostic applications, and sample collection, these sample storage tubes ensure dependable performance and sample integrity.