Caplugs® Evergreen 15 mL Conical Centrifuge Tubes, Polystyrene, Natural Caps, Non-Sterile, 1000/Bag
These 15 mL conical centrifuge tubes are molded from clear polystyrene with natural threaded caps, supplied unassembled and non-sterile for high-throughput sample prep, routine centrifugation, and bulk specimen handling. The conical base concentrates pellets for clean aspiration, while the rigid polystyrene wall offers excellent optical clarity for visual inspection. Sold 1000/Bag for cost-efficient bench and clinical workflows.
Technical Specifications
| Product Type | Conical Centrifuge Tubes |
| Volume/Size | 15 mL |
| Material | Polystyrene (PS) |
| Closure/Cap | Natural threaded caps (unassembled) |
| Sterility | Non-Sterile |
| Pack Size | 1000/Bag |
| Country of Origin | USA |
Applications
- Routine sample centrifugation and pellet concentration
- Bulk specimen collection and aliquoting
- Cell culture supernatant and media handling at room temperature
- Reagent and buffer storage for short-term bench use
- Visual inspection of samples requiring high optical clarity
- High-throughput sample prep in teaching and clinical labs
Quality & Procurement
Order through labsupplies.com, an authorized Caplugs® Evergreen dealer shipping from US inventory. These tubes are Made in USA. Each bag carries a lot number to support traceability for CAP-, CLIA-, and ISO 15189-accredited laboratories. Institutional and grant-funded tiered pricing is available for volume procurement — contact our team for quotes against standing purchase orders.
Frequently Asked Questions
Are these centrifuge tubes sterile?
No. These tubes are supplied non-sterile and unassembled, making them well suited for general bench applications and processes where in-house sterilization or sterility is not required.
What material are the tubes made from?
The tube vessel is molded from polystyrene (PS), which provides high optical clarity for visual inspection. The natural caps are shipped separately in the same bag for assembly at the point of use.
What maximum g-force can these tubes handle?
Polystyrene tubes are rigid but more brittle than polypropylene and are intended for low-to-moderate speed centrifugation. Confirm your rotor's rated limits and use a compatible adapter; avoid high-speed protocols that exceed the tube's structural tolerance.
How many tubes and caps are in each pack?
Each pack contains 1000 tubes per bag with natural caps, supplied unassembled. The quantity is fixed at 1000/Bag as the single unit of sale.