CryoSure® Cryogenic Vial Caps — HDPE, Red, 200/Bag (300-3900-R20)
Designed for cryogenic sample storage applications, these CryoSure® vial caps are molded from high-density polyethylene and supplied in a convenient 200/Bag pack for high-throughput laboratory operations. Color-coded in red for straightforward sample identification and organization, the caps are provided non-sterile for general-use cryogenic vial workflows. Part number 300-3900-R20 is an economical choice for labs managing large inventories of frozen specimens.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 300-3900-R20 |
| Product Line | CryoSure® |
| Component Type | Cryogenic Vial Cap |
| Material | High-Density Polyethylene (HDPE) |
| Color | Red |
| Sterility | Non-Sterile |
| Pack Size | 200/Bag |
| Country of Origin | USA |
Applications
- Replacement or color-coded cap management for cryogenic vial collections in biobanks and research freezers
- Long-term storage of biological specimens at ultra-low temperatures, including liquid nitrogen environments
- Color-coding frozen sample libraries by project, study, donor, or sample type using the red cap designation
- Re-capping cryovials during sample retrieval and re-archiving workflows
- High-volume cryogenic storage operations where bulk-pack caps reduce per-unit cost and handling time
Material & Chemical Resistance
High-density polyethylene (HDPE) offers excellent general chemical resistance to aqueous solutions, dilute acids and bases, and a broad range of common laboratory reagents, making it well suited to cryogenic storage environments. HDPE remains serviceable at very low temperatures and provides good rigidity and impact resistance under freezer and liquid nitrogen conditions. Note that HDPE is not recommended for autoclaving and may have limited compatibility with certain chlorinated or aromatic solvents.
Quality & Procurement
Made in USA, Caplugs® Evergreen CryoSure® vial caps are produced under ISO 9001 quality management from BPA-free, phthalate-free, latex-free resin. LabSupplies.com is an authorized dealer and ships from USA inventory, typically same business day for stocking items, with tiered pricing available for institutional, biobank, and grant-funded laboratories.
Frequently Asked Questions
Are these cryogenic vial caps sterile?
No — caps in 300-3900-R20 are supplied non-sterile in 200/Bag bulk packaging, which is appropriate for general cryogenic storage applications where sterility of the cap itself is not required.
Can HDPE caps withstand liquid nitrogen temperatures?
HDPE is broadly recognized as a cryogenically serviceable material, maintaining useful rigidity and impact resistance at ultra-low temperatures including those encountered in liquid nitrogen storage. However, always verify compatibility with your specific vial and storage protocol before use.
How can the red color-coding be used in the lab?
The red cap color allows labs to visually distinguish sample groups within a freezer inventory — for example, separating samples by project, study arm, collection date, or sample type — reducing retrieval errors and improving overall sample management efficiency.