Centrifuge Tube Conical Bottom
Product Code : EL-TT-10132
Quick answer: This is a polypropylene, graduated, conical-bottom centrifuge tube available in 5 ml, 10 ml, 15 ml, 25 ml and 50 ml capacities, with the 15 ml and 50 ml sizes also available sterile. The conical (tapered) bottom concentrates pelleted material at a single point after spinning, making it easier to see, measure and recover the pellet than with a round- or flat-bottom tube.
| Capacity | Sterile Option Available |
|---|---|
| 5 ml | – |
| 10 ml | – |
| 15 ml | Yes |
| 25 ml | – |
| 50 ml | Yes |
Why a Conical Bottom for Centrifugation
When a sample is spun in a centrifuge, denser material collects at the point furthest from the axis of rotation. A conical bottom concentrates that pellet into a small, well-defined tip rather than spreading it across a flat or curved base, which makes the pellet easier to see, easier to keep intact when decanting the supernatant, and easier to fully recover for the next step in a protocol. The graduated markings let a user estimate pellet or sample volume directly without transferring to a separate measuring vessel. Polypropylene construction is chemically resistant to most common reagents and buffers used in sample prep, and the 15 ml and 50 ml sizes — the two most commonly used volumes in routine lab work — are also offered sterile for applications where contamination control matters.
Frequently Asked Questions
What capacities are available for this centrifuge tube?
It is available in 5 ml, 10 ml, 15 ml, 25 ml and 50 ml capacities, with the 15 ml and 50 ml sizes also offered in a sterile version.
Why choose a conical bottom instead of a round bottom?
A conical bottom concentrates the pelleted material into a small, well-defined point at the tip after centrifugation, making the pellet easier to see, decant around and fully recover compared with a round- or flat-bottom tube.
Are all capacities available sterile?
No, only the 15 ml and 50 ml sizes are currently offered as sterile options; the 5 ml, 10 ml and 25 ml sizes are supplied non-sterile.
Related Products
Explore other centrifuge tube options: Centrifuge Tubes Round Bottom and Centrifuge Tubes Box, or see the full Test Tube range.
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Last updated: September 2026.