Caplugs® Evergreen 15 mL Unthreaded Conical Centrifuge Tubes, Polystyrene (PS), Natural, Non-Sterile, 1000/Bag
The Caplugs® Evergreen 15 mL Unthreaded Conical Centrifuge Tubes are clear polystyrene vessels built for high-throughput sample collection, low-speed pelleting, and routine aliquoting across clinical and research benches. Their conical floor concentrates small pellets for clean recovery, while the rigid PS wall delivers excellent optical clarity for visual inspection. Supplied bulk, 1000 per bag, for cost-controlled volume workflows.
Technical Specifications
| Product Type | Conical Centrifuge Tubes (Unthreaded) |
|---|---|
| Volume/Size | 15 mL |
| Material | Polystyrene (PS) |
| Closure/Cap | Unthreaded (no cap supplied) |
| Color | Natural / Clear |
| Sterility | Non-Sterile |
| Pack Size | 1000/Bag |
| Country of Origin | USA |
Applications
- Low-speed centrifugation and pelleting of cell suspensions or precipitates
- Bulk sample collection and aliquoting in clinical labs
- Reagent and buffer dispensing where optical clarity aids inspection
- Serial dilution and assay setup at the open bench
- Short-term sample staging prior to transfer or processing
- Teaching and high-throughput screening that demands disposable, low-cost vessels
Quality & Procurement
These tubes are Made in USA and stocked by labsupplies.com, an authorized Caplugs® Evergreen dealer shipping from US inventory. Each bag carries lot numbers supporting 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 terms.
Frequently Asked Questions
Are these centrifuge tubes sterile?
No. These tubes are supplied non-sterile. For applications requiring sterility, autoclaving is not recommended for polystyrene; select a sterile or autoclavable variant instead.
Do the tubes include caps?
No. These are unthreaded tubes supplied without caps. They are intended for open-bench workflows or use with separately sourced closures suited to the tube geometry.
What centrifugation speed can polystyrene tubes withstand?
Polystyrene is a rigid but lower-strength resin best suited to low-speed spins. For high-g or high-speed protocols, choose a polypropylene conical tube rated for those forces.
What is the pack configuration?
Each unit of sale is one bag of 1000 tubes (1000/Bag), priced per bag. Volume and standing-order pricing is available for larger commitments.