Caplugs® Evergreen 15 mL Unthreaded Conical Centrifuge Tubes, Polypropylene (PP), Natural, Non-Sterile, 125/Box
The 15 mL Unthreaded Conical Centrifuge Tubes from Caplugs® Evergreen are molded from natural polypropylene (PP) for routine sample preparation, cell pelleting, and reagent aliquoting. Their conical geometry concentrates pellets at the tube tip for clean supernatant decanting, while the unthreaded format suits closure systems and capping stations that do not require screw threads.
Technical Specifications
| Product Type | Conical Centrifuge Tube (Unthreaded) |
| Volume/Size | 15 mL |
| Material | Polypropylene (PP) |
| Color | Natural |
| Sterility | Non-Sterile |
| Pack Size | 125/Box |
| Country of Origin | USA |
Applications
- Cell pelleting and resuspension during routine centrifugation runs
- Aliquoting and short-term storage of buffers, media, and reagents
- Sample collection and transport for clinical and research workflows
- Protein and nucleic acid sample preparation prior to downstream assays
- Mixing and dilution steps in chemistry and microbiology labs
- General benchtop liquid handling where a conical tip aids recovery
Quality & Procurement
labsupplies.com is an authorized Caplugs® Evergreen dealer shipping from US inventory, and these tubes are Made in USA. Boxes carry lot numbers to support traceability for CAP-, CLIA-, and ISO 15189-accredited laboratories. Institutional and grant-funded tiered pricing is available — contact our team for volume quotes on standing orders.
Frequently Asked Questions
Are these centrifuge tubes sterile?
No. These 15 mL conical tubes ship non-sterile. For applications requiring sterility, autoclaving compatibility depends on your protocol and the unthreaded closure used, so validate with your own process.
Do the tubes come with caps?
These are unthreaded conical tubes, so they do not include screw caps. They are intended for closure systems or capping methods compatible with an unthreaded format.
What material are the tubes made from?
The tubes are molded from natural polypropylene (PP), a durable resin commonly chosen for its broad temperature tolerance and suitability for centrifugation and general sample handling.
How many tubes are in each pack?
Each box contains 125 tubes (125/Box). The listed price is per box, and tiered pricing is available for institutional and grant-funded bulk orders.