Caplugs® Evergreen 0.25 mL Conical Polypropylene Microcentrifuge Tubes, Tethered Caps, Natural, Non-Sterile, 1000/Bag
The Caplugs® Evergreen 0.25 mL Conical Microcentrifuge Tubes deliver dependable small-volume handling for molecular biology, sample archiving, and reagent aliquoting. Molded from natural polypropylene, each tube features an integrated tethered cap that stays attached during processing, reducing cross-contamination risk and lost closures at the bench.
Technical Specifications
| Product Type | Conical Microcentrifuge Tubes with Tethered Caps |
|---|---|
| Volume/Size | 0.25 mL |
| Material | Polypropylene (PP) |
| Closure/Cap | Attached (tethered) flip cap, PP |
| Color | Natural |
| Sterility | Non-Sterile |
| Pack Size | 1000/Bag |
| Country of Origin | USA |
Applications
- Aliquoting and storing micro-volume DNA, RNA, and protein samples
- Preparing master mixes and reagent stocks for downstream assays
- Short-term sample archiving at refrigerated or frozen temperatures
- Enzyme and antibody dilution work requiring minimal dead volume
- Microcentrifugation of small biological specimens
- Bench-side labeling and tracking in high-throughput sample prep
Quality & Procurement
labsupplies.com is an authorized Caplugs® Evergreen dealer shipping from US inventory. These tubes are Made in USA, and each bag carries lot numbers that support traceability for CAP-, CLIA-, and ISO 15189-accredited laboratories. Institutional and grant-funded tiered pricing is available for departments standardizing on consumables across multiple labs.
Frequently Asked Questions
Are these 0.25 mL microcentrifuge tubes sterile?
No. These tubes are supplied non-sterile. For applications demanding asepsis, autoclave the polypropylene tubes prior to use following your lab's validated sterilization protocol.
What material are the tubes and caps made from?
Both the tube body and the tethered cap are molded from polypropylene (PP), giving good chemical durability and the ability to withstand standard autoclaving and freezing temperatures.
Do the caps stay attached during processing?
Yes. Each tube has an integrated tethered cap that remains attached to the tube body, which helps prevent lost closures and reduces cross-contamination during open-and-close handling.
How many tubes are in each pack?
Each pack contains 1000 tubes per bag. Bags are lot-numbered to support sample and inventory traceability across accredited workflows.