Caplugs® Evergreen 8.0 mL Round Bottom Test Tubes, Polystyrene, 13 x 100 mm, Green Screw Caps, Natural, 1000/Bag
These 8.0 mL round bottom test tubes are molded from clear polystyrene (PS) in the standard 13 x 100 mm format, shipped unassembled with separate green screw caps. Ideal for sample aliquoting, specimen storage, and general benchtop assays, the natural clarity of PS supports easy visual inspection of contents.
Technical Specifications
| Product Type | Round Bottom Test Tubes (unassembled) |
| Volume/Size | 8.0 mL, 13 x 100 mm |
| Material | Polystyrene (PS) |
| Closure/Cap | Green Screw Cap (supplied separately, unassembled) |
| Color | Natural (tube), Green (cap) |
| Sterility | Non-Sterile |
| Pack Size | 1000/Bag |
| Country of Origin | USA |
Applications
- Sample aliquoting and routine specimen storage
- Clinical and diagnostic sample handling
- General benchtop assays and reagent preparation
- Serial dilutions and short-term sample retention
- Visual inspection of liquid samples through clear PS walls
- Color-coded screw-cap sample organization with green closures
Quality & Procurement
labsupplies.com is an authorized Caplugs® Evergreen dealer shipping from US inventory. These tubes are proudly 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 for high-volume procurement.
Frequently Asked Questions
Are these tubes supplied assembled with caps?
No. This product ships unassembled, meaning the polystyrene tubes and green screw caps are packaged separately in the same bag for assembly at point of use.
What are the exact dimensions of these test tubes?
Each tube measures 13 x 100 mm with an 8.0 mL working volume, the industry-standard format compatible with most racks and instrumentation designed for 13 mm tubes.
Are these tubes sterile?
These tubes are non-sterile and intended for general laboratory use. For applications requiring sterility, the tubes should be sterilized using a validated method compatible with polystyrene, or a sterile alternative selected.
What is the pack size and unit of sale?
Tubes are sold by the bag at 1000 tubes per bag, priced per pack. Larger institutional quantities qualify for tiered pricing.