Caplugs® Evergreen 4.0 mL Round Bottom Test Tubes, 10 x 75 mm, Polystyrene, Natural, 250/Bag
The Caplugs® Evergreen 4.0 mL Round Bottom Test Tubes deliver clear, dimensionally consistent polystyrene vessels in a 10 x 75 mm format trusted for routine sample handling. Bench scientists rely on these tubes for flow cytometry sample prep, general clinical aliquoting, and reagent dispensing where optical clarity and reproducible geometry matter.
Technical Specifications
| Product Type | Round Bottom Test Tubes |
| Volume/Size | 4.0 mL, 10 x 75 mm |
| Material | Polystyrene (PS) |
| Color | Natural |
| Sterility | Non-Sterile |
| Pack Size | 250/Bag |
| Country of Origin | USA |
Applications
- Flow cytometry sample loading and staining workflows
- General clinical and research sample aliquoting
- Reagent and buffer dispensing at the bench
- Short-term sample storage and transport
- Colorimetric and turbidity reading prep
- Teaching lab and routine QC procedures
Quality & Procurement
labsupplies.com is an authorized Caplugs® Evergreen dealer shipping from US inventory. These tubes are Made in USA, and every 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 4.0 mL polystyrene tubes are supplied non-sterile, making them well suited for general bench work, reagent handling, and applications that do not require an aseptic vessel out of the bag.
What are the exact tube dimensions?
Each tube measures 10 x 75 mm with a round bottom and a nominal 4.0 mL capacity, matching standard rack and instrument carrier openings designed for the 12 x 75 mm class footprint.
What material are the tubes made from?
The vessels are molded from polystyrene (PS), which provides excellent optical clarity for visual inspection and instrument reading. Note that PS has limited resistance to many organic solvents.
How many tubes come in each pack?
Tubes are packaged 250 per bag. The listed price is per pack of 250/Bag, and bags carry lot numbers for traceability across accredited workflows.