Vial Caps, HDPE, Orange — 300-3900-E20 | 200/Bag | Caplugs® Evergreen

CryoSure® Cryogenic Vial Caps — HDPE, Orange, 200/Bag (300-3900-E20)

These CryoSure® cryogenic vial caps are molded from high-density polyethylene (HDPE) and designed to provide a secure closure on compatible cryogenic vials during low-temperature storage. Supplied non-sterile in bulk (200/Bag), they are suited for high-throughput freezer operations where replacement or color-coded cap management is needed. The orange color supports straightforward visual identification and sample organization across multiple storage racks or boxes.

Technical Specifications

Applications

• Replacement or spare caps for cryogenic vial collections in ultra-low temperature and liquid nitrogen storage
• Color-coded sample organization within cryogenic boxes and racks
• Bulk re-capping operations in biobanking and sample repository workflows
• Long-term frozen storage of biological specimens, cell lines, and tissue samples
• General cryogenic vial closure in research and clinical laboratory settings

Material & Chemical Resistance

High-density polyethylene (HDPE) offers good general chemical resistance to aqueous solutions, dilute acids and bases, and many common laboratory reagents, making it well suited for cryogenic storage environments. HDPE remains serviceable at very low temperatures, retaining adequate toughness for handling frozen vials. Note that HDPE is not autoclavable; if sterile closures are required, additional processing considerations apply. As with all polyethylene labware, contact with certain aromatic or halogenated solvents should be avoided, as these may cause swelling or permeation over time.

Quality & Procurement

Made in USA, Caplugs® Evergreen CryoSure® cryogenic vial caps are produced under ISO 9001 quality management from BPA-free, phthalate-free, latex-free HDPE resin. LabSupplies.com is an authorized dealer of Caplugs® Evergreen products and ships from USA inventory, with tiered pricing available for biobanks, core facilities, and high-volume procurement programs.

Frequently Asked Questions

Are these cryogenic vial caps sterile?
No — the 300-3900-E20 caps are supplied non-sterile in 200/Bag bulk packaging, which is appropriate for most general cryogenic storage and re-capping applications where sterility is not a primary requirement.

Can HDPE caps withstand liquid nitrogen temperatures?
HDPE is a material commonly used in cryogenic applications and retains adequate toughness at very low temperatures, including those encountered in liquid nitrogen vapor-phase and ultra-low temperature freezer storage. Always verify compatibility with your specific vial and storage conditions before committing large sample sets.

What vials are these caps compatible with?
These caps are designed for use with CryoSure® cryogenic vials. Compatibility with vials from other manufacturers depends on thread type and outside diameter; consult your vial specifications or contact LabSupplies.com to confirm a proper fit before ordering.