Caplugs® Evergreen 30 mL Conical Centrifuge Tubes, Sterile Polypropylene Copolymer (PPC), Natural with Green Screw Caps, 480/Case
These 30 mL conical centrifuge tubes from Caplugs® Evergreen are molded from sterile polypropylene copolymer (PPC) with natural, translucent walls and leak-resistant green screw caps. Designed for sample concentration, cell pelleting, and reagent storage, each tube ships assembled and ready for the bench. The conical geometry drives clean pellet recovery and complete supernatant decanting.
Technical Specifications
| Product Type | Conical Centrifuge Tubes (assembled with caps) |
|---|---|
| Volume/Size | 30 mL |
| Material | Polypropylene Copolymer (PPC), Natural |
| Closure/Cap | Green Screw Cap |
| Sterility | Sterile |
| Pack Size | 480/Case (20/Tray Assembled) |
| Country of Origin | USA |
Applications
- Cell pelleting and resuspension in mammalian and microbial workflows
- Sample concentration and supernatant decanting after spins
- Reagent and buffer aliquoting with secure screw-cap storage
- Protein and nucleic acid precipitation prep
- Specimen collection and intermediate sample transfer
- Bulk media and stock solution handling in core facilities
Chemical Resistance
| Reagent Class | Compatibility |
|---|---|
| Dilute acids | Good |
| Dilute bases / alkalis | Good |
| Alcohols (ethanol, isopropanol) | Good |
| Aqueous salt solutions / buffers | Excellent |
| Aldehydes (e.g., formaldehyde) | Good |
| Aromatic / chlorinated solvents | Limited — test before use |
| Strong oxidizers | Limited — test before use |
Quality & Procurement
labsupplies.com is an authorized Caplugs® Evergreen dealer shipping from US inventory. These tubes are Made in USA, and every case carries lot numbers to support traceability for CAP-, CLIA-, and ISO 15189-accredited laboratories. Institutional and grant-funded tiered pricing is available for volume orders — contact our procurement team for a quote.
Frequently Asked Questions
Are these centrifuge tubes sterile?
Yes. Each 30 mL tube is supplied sterile and assembled with its green screw cap, ready for direct use in cell culture and specimen workflows without additional preparation.
What is the tube made of, and is it the same as standard polypropylene?
The tube is molded from polypropylene copolymer (PPC), not standard homopolymer PP. PPC offers improved impact resistance and clarity while maintaining broad chemical compatibility with aqueous reagents, buffers, acids, bases, and alcohols.
How are the tubes packaged?
They ship 480/Case, organized as 20/Tray assembled, so each tray holds 20 capped tubes for tidy handling and storage on the bench.
What is the maximum recommended centrifugation force?
Always follow your rotor manufacturer's g-force ratings for the tube format and volume. PPC conical tubes are suited to routine benchtop spins; confirm the rated RCF for your specific rotor and adapter before use.