Caplugs® Evergreen 15 mL Unthreaded Conical Centrifuge Tubes, PPC, Natural, Non-Sterile, 1000/Bag
These 15 mL unthreaded conical centrifuge tubes are molded from natural polypropylene copolymer (PPC) for high-throughput sample prep, pelleting, and routine clinical and research centrifugation. The conical bottom concentrates pellets for clean recovery, while the unthreaded open design supports rapid dispensing, capping with separate closures, or use with automated workflows. Supplied non-sterile in bulk 1000/Bag packs.
Technical Specifications
| Product Type | Unthreaded Conical Centrifuge Tubes |
| Volume/Size | 15 mL |
| Material | Polypropylene Copolymer (PPC) |
| Closure/Cap | Unthreaded (no cap supplied) |
| Color | Natural |
| Sterility | Non-Sterile |
| Pack Size | 1000/Bag |
| Country of Origin | USA |
Applications
- Cell pelleting and resuspension in research workflows
- Sample aliquoting and reagent preparation
- Clinical and diagnostic specimen processing
- Protein and nucleic acid precipitation steps
- Bulk consumable stocking for high-throughput labs
- General benchtop mixing, storage, and transport
Quality & Procurement
labsupplies.com is an authorized Caplugs® Evergreen dealer shipping from US inventory. These tubes are 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 bulk and standing orders — contact our procurement team for volume quotes.
Frequently Asked Questions
Are these centrifuge tubes sterile?
No. These tubes are supplied non-sterile, making them ideal for general benchtop and reagent-prep applications where sterility is not required. For aseptic work, autoclave compatibility depends on your protocol and equipment.
Do these tubes come with caps?
No. This is an unthreaded conical tube with no cap supplied. The open design suits automated dispensing and rapid manual workflows; closures must be sourced separately if sealing is required.
What is the maximum recommended centrifugation force?
Maximum RCF depends on rotor type, fill volume, and balance. PPC tubes offer good chemical and mechanical performance; always confirm ratings against your centrifuge and rotor manufacturer guidance before high-speed runs.
What does PPC mean and why is it used?
PPC is polypropylene copolymer, a tough resin with good clarity and impact resistance at low temperatures. It is well suited to sample-handling tubes that undergo centrifugation and routine cold storage.