0.5 mL Conical Microcentrifuge Tubes with Tethered Cap — Polypropylene, Natural, 1000/Bag
These 0.5 mL conical microcentrifuge tubes feature a permanently attached tethered cap that eliminates cap loss and reduces cross-contamination risk during high-throughput pipetting workflows. Manufactured from virgin-grade polypropylene (PP) in a natural (translucent) finish, they are supplied non-sterile in sealed 1000/Bag packaging and fit standard microcentrifuge rotor positions. The conical bottom geometry concentrates pellets at the tube tip for complete microvolume recovery with minimal dead volume after centrifugation.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 214-3403-030 |
| Volume | 0.5 mL |
| Bottom Style | Conical |
| Cap Style | Tethered — permanently attached |
| Material | Polypropylene (PP) |
| Color | Natural (translucent) |
| Sterility | Non-Sterile |
| Pack Size | 1000/Bag |
| BPA / Phthalate Free | Yes |
| Country of Origin | USA |
Applications
- PCR preparation and enzyme reaction setup requiring low dead volume at the conical tip
- DNA and RNA extraction workflows where complete pellet recovery is critical
- Protein precipitation and cell pelleting in benchtop microcentrifuge rotors
- Clinical microvolume sample processing in CAP-, CLIA-, and ISO 15189-regulated environments where lot-level traceability is required
- High-throughput repetitive pipetting operations where tethered caps enable single-handed opening and closing to minimize workflow interruption
Chemical Resistance
| Reagent / Condition | Compatibility |
|---|---|
| Aqueous buffers / saline | Excellent |
| Dilute acids | Excellent |
| Dilute bases | Excellent |
| Methanol / isopropanol / ethanol | Good — short-term contact |
| Acetonitrile | Good — short-term contact |
| Aromatic / chlorinated solvents | Not recommended |
Quality & Procurement
Made in USA, these Caplugs® Evergreen microcentrifuge tubes are produced at ISO-certified facilities from FDA-registered, BPA-free, phthalate-free virgin-grade polypropylene. Lot-to-lot dimensional consistency ensures reliable rotor fit and cap hinge durability across every bag, and each sealed bag ships with lot number and manufacturing date to support full CAP, CLIA, and ISO 15189 audit trails. LabSupplies.com is an authorized Caplugs® Evergreen dealer shipping from USA inventory, with tiered pricing available for high-volume institutional and grant-funded laboratories.
Frequently Asked Questions
Are these microcentrifuge tubes sterile?
No — the 214-3403-030 tubes are supplied non-sterile in sealed 1000/Bag packaging. For applications requiring sterility, consider a DNase/RNase-free certified option or autoclave these tubes prior to use, since polypropylene is autoclavable.
What makes a tethered cap better than a snap cap for high-throughput work?
The tethered cap is permanently attached via a flexible hinge, so it cannot be misplaced or mixed between tubes during rapid sample processing. Single-handed open-and-close operation also reduces repetitive motion and workflow interruption compared to separate snap caps.
Will these tubes fit my standard benchtop microcentrifuge rotor?
Yes — the 0.5 mL conical format is dimensionally consistent with standard microcentrifuge rotor positions designed for this tube size. Caplugs® Evergreen manufactures to tight dimensional tolerances to ensure consistent rotor fit across all 1000 tubes in a bag.
Do these tubes support regulatory traceability requirements for clinical labs?
Yes — each bag includes a lot number and manufacturing date, providing the documentation needed to satisfy CAP, CLIA, and ISO 15189 traceability requirements for consumables used in regulated testing environments.