Caplugs® Evergreen 4.9 mL Ribbed Round Bottom Test Tubes, 12 x 75 mm, Polystyrene, Natural, 1000/Bag
The Caplugs® Evergreen Ribbed Round Bottom Test Tubes deliver a clear, rigid 12 x 75 mm polystyrene format with a 4.9 mL working capacity, engineered for routine clinical chemistry, sample aliquoting, and reagent dispensing. Ribbed walls improve grip on automated and manual workflows, while the natural polystyrene offers excellent optical clarity for visual inspection and colorimetric reads.
Technical Specifications
| Product Type | Ribbed Round Bottom Test Tubes |
| Volume/Size | 4.9 mL, 12 x 75 mm |
| Material | Polystyrene (PS) |
| Color | Natural |
| Sterility | Non-Sterile |
| Pack Size | 1000/Bag |
| Country of Origin | USA |
Applications
- Routine clinical chemistry and diagnostic sample handling
- Serum, plasma, and whole-blood aliquoting
- Reagent and buffer dispensing on the bench
- Colorimetric and turbidimetric visual assessment
- Loading on automated analyzers and sample carousels
- General laboratory mixing, dilution, and short-term storage
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 to streamline procurement across high-volume sample workflows.
Frequently Asked Questions
What is the working volume and dimension of these tubes?
Each tube holds 4.9 mL and measures 12 x 75 mm, the standard small-tube format used across clinical chemistry and general bench applications.
Are these test tubes sterile?
No. These tubes are supplied non-sterile, making them suited to routine, non-aseptic sample handling, dispensing, and storage tasks.
What material are these tubes made from?
They are molded from polystyrene (PS) in a natural color, providing high optical clarity and rigidity for visual inspection and analyzer use.
How many tubes are in each pack?
These tubes are supplied 1000 per bag under SKU 214-2131-010, ideal for high-throughput labs that consume disposable tubes in volume.