Caplugs® Evergreen 2.5 mL Round Bottom Test Tubes, 10 x 50 mm, Polystyrene (PS), Natural, Non-Sterile, 1000/Bag
The Caplugs® Evergreen 2.5 mL Round Bottom Test Tubes are clear, natural polystyrene (PS) tubes measuring 10 x 50 mm, supplied non-sterile in a 1000-count bag. Compact dimensions and optical clarity make them well suited to small-volume sample collection, colorimetric and turbidimetric reads, and routine reagent aliquoting on the bench.
Technical Specifications
| Product Type | Round Bottom Test Tubes |
|---|---|
| Volume/Size | 2.5 mL, 10 x 50 mm |
| Material | Polystyrene (PS) |
| Color | Natural (Clear) |
| Sterility | Non-Sterile |
| Pack Size | 1000/Bag |
| Country of Origin | USA |
Applications
- Small-volume sample and specimen collection
- Reagent and standard aliquoting for assay setup
- Colorimetric and turbidimetric optical reads where PS clarity matters
- Immunoassay and serology dilution steps
- Hematology and routine clinical bench work
- Short-term sample storage and transport at ambient conditions
Quality & Procurement
labsupplies.com is an authorized Caplugs® Evergreen dealer shipping from US inventory, and these tubes are Made in USA. Each bag carries lot numbers to support traceability for CAP-, CLIA-, and ISO 15189-accredited laboratories. Institutional and grant-funded tiered pricing is available; contact our procurement team for volume quotes and standing-order setup.
Frequently Asked Questions
Are these test tubes sterile?
No. These tubes ship non-sterile and are intended for general laboratory use. For sterile workflows, decontaminate per your validated protocol or select a sterile alternative.
What material are the tubes made from?
They are molded from polystyrene (PS), which provides high optical clarity and rigidity ideal for visual inspection and optical-density measurements.
Do these tubes come with caps?
This listing covers the 10 x 50 mm round bottom tubes only; no closures are included. Match a separately ordered cap or plug to the 10 mm outer diameter if a closure is required.
How many tubes are in each unit of sale?
Each unit is a bag of 1000 tubes (1000/Bag). The list price shown is per bag.