15 mL Conical Centrifuge Tubes with Green HDPE Screw Caps — PPC Tube Body, 1,000/Bag (240-2469-G80)
These 15 mL conical centrifuge tubes pair a precision-molded Polypropylene Copolymer (PPC) tube body with a green High-Density Polyethylene (HDPE) threaded screw cap, supplied unassembled in a 1,000/Bag bulk format for high-throughput clinical and research environments. The standard 17 × 120 mm conical geometry seats correctly in 15 mL rotor positions across major centrifuge platforms including Eppendorf® and Beckman Coulter®, while the green cap color supports color-coded sample management across multi-analyte workflows. Offered non-sterile and unassembled, part number 240-2469-G80 gives procurement teams pre-paired tube-and-cap convenience at bulk-packaging economics.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 240-2469-G80 |
| Tube Volume | 15 mL |
| Tube Dimensions | 17 × 120 mm |
| Tube Bottom Geometry | Conical |
| Tube Material | Polypropylene Copolymer (PPC) |
| Tube Color | Natural (semi-transparent) |
| Cap Material | High-Density Polyethylene (HDPE) |
| Cap Color | Green |
| Cap Type | Threaded Screw Cap |
| Assembly State | Unassembled — 1,000 tubes + 1,000 caps per Bag |
| Pack Size | 1,000/Bag |
| Sterility | Non-Sterile |
| BPA / Phthalates | BPA-free; no phthalate plasticizers |
| Country of Origin | USA |
Applications
- Conical centrifugation for cell pelleting, density-gradient separations, and differential spin protocols
- Clinical specimen processing — urine, serum, plasma, and biochemistry aliquots in high-throughput lab settings
- Sample storage and freeze-thaw cycling, where PPC's elevated impact resistance reduces tube cracking compared to standard polystyrene
- Environmental and industrial sample collection where color-coded green caps designate specific analyte categories
- Biobanking and specimen archiving requiring visual sample verification through the semi-transparent PPC tube body
Compatibility
The standard 17 × 120 mm conical format of these tubes fits 15 mL rotor positions on major centrifuge platforms, including Eppendorf® 5810R and 5804R instruments equipped with the A-4-81 swinging-bucket rotor, as well as Beckman Coulter® centrifuges accepting standard 15 mL conical tube geometry. The Thermo Fisher Sorvall™ ST16R, Legend X1R, CL10, and Fiberlite™ F15-6×100y rotor are also cited as compatible platforms; conical adapter inserts or flat-bottom well configurations may be required depending on the specific rotor. Always confirm the maximum rated g-force and rotor capacity in your instrument manual before committing to a large-volume purchase, as rotor tolerances vary by model generation.
Chemical Resistance
| Reagent / Condition | Compatibility — PPC Tube Body |
|---|---|
| Aqueous buffers and saline | Excellent |
| Dilute acids and bases | Excellent |
| Ethanol and isopropanol | Good — short-term contact |
| Freeze-thaw cycling | Good — PPC offers improved low-temperature impact resistance vs. standard PP |
| Chlorinated solvents (e.g., chloroform) | Not recommended |
| Aromatic solvents (e.g., toluene, xylene) | Not recommended |
| Acetone | Not recommended |
Quality & Procurement
Made in USA, these Caplugs® Evergreen centrifuge tubes are manufactured from virgin, BPA-free, phthalate-free Polypropylene Copolymer resin under ISO 9001 quality management standards. The unassembled 1,000/Bag format allows labs to label tubes individually before assembly, supporting efficient pre-analytical processing. LabSupplies.com is an authorized Caplugs® Evergreen dealer shipping from USA inventory, with tiered volume pricing available for institutional purchasers, hospital systems, and grant-funded research programs.
Frequently Asked Questions
Are these centrifuge tubes sterile?
No — these tubes are supplied non-sterile. For applications requiring sterility, please contact us about sterile centrifuge tube options available from the Caplugs® Evergreen line.
Why are the tubes and caps shipped unassembled?
The unassembled format allows technicians to label tube bodies before capping, which is especially useful in high-throughput clinical and biobanking workflows where pre-analytical labeling is a required step. Each bag contains exactly 1,000 tubes and 1,000 green HDPE caps.
What is the advantage of Polypropylene Copolymer (PPC) over standard polystyrene for centrifuge tubes?
PPC offers superior impact resistance and better low-temperature performance compared to standard polystyrene, making it less prone to cracking during repeated centrifugation cycles, freeze-thaw cycling, and high-throughput specimen processing. The semi-transparent finish also allows visual verification of sample presence and volume without opening the tube.
What does the green cap color indicate, and are other cap colors available?
Green is commonly used in color-coded laboratory systems to designate specific specimen types — such as urine, environmental samples, or biochemistry aliquots — helping staff quickly sort and identify tubes during multi-analyte processing. Caplugs® Evergreen offers related family members in natural cap colors and in both PPC and polystyrene tube bodies, enabling single-vendor procurement across your full tube inventory.