Histo-Click™ 20 mL Click-Top Caps — HDPE, White, 1000/Bag (300-7020-W20)
The Histo-Click™ click-top caps are 20 mL HDPE closures designed to seat securely on compatible histology and specimen containers with an audible click confirmation, supplied non-sterile in bulk (1000/Bag) for high-throughput laboratory workflows. The white coloration supports labeling and visual identification, while the high-density polyethylene construction delivers reliable chemical resistance for routine specimen handling and tissue processing applications.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 300-7020-W20 |
| Volume/Size | 20 mL |
| Closure Style | Click-Top (snap/click closure) |
| Material | High-Density Polyethylene (HDPE) |
| Color | White |
| Sterility | Non-Sterile |
| Pack Size | 1000/Bag |
| Country of Origin | USA |
Applications
- Capping histology and tissue specimen containers during fixation and processing
- Sealing sample vials or containers in anatomical pathology workflows
- High-volume specimen accessioning where secure, repeatable closure is required
- Color-coded container management and visual organization in the lab or storage area
- General laboratory container closure where a positive-lock snap cap is preferred
Material & Chemical Resistance
High-density polyethylene (HDPE) provides good general chemical resistance to aqueous solutions, many dilute acids and bases, and a broad range of common laboratory reagents, making it a practical choice for specimen containment and histological fixatives. HDPE is a rigid, durable thermoplastic; however, it is not recommended for autoclaving, and compatibility should be verified when prolonged contact with concentrated oxidizing acids, aromatic solvents, or halogenated solvents is anticipated.
Quality & Procurement
Made in USA, Caplugs® Evergreen Histo-Click™ caps are manufactured under ISO 9001 quality management from BPA-free, phthalate-free, latex-free HDPE 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 and high-volume accounts.
Frequently Asked Questions
Are these click-top caps sterile?
No — the 300-7020-W20 caps are supplied non-sterile in 1000/Bag bulk packaging, which is standard for most histology and general specimen-handling applications that do not require sterile closures.
How does the click-top closure work?
The click-top design snaps onto a compatible container with an audible and tactile click, providing a positive-lock indication that the cap is fully seated and helping to minimize the risk of accidental opening during transport or storage.
Are HDPE caps compatible with common histological fixatives?
HDPE offers good resistance to many aqueous-based fixatives and standard laboratory reagents. For aggressive or concentrated chemical fixatives, it is always advisable to verify compatibility with a small test quantity before committing to full production use, as performance can vary with concentration and contact time.