Histo-Click™ 20 mL Click-Top Caps — HDPE, Blue, 1000/Bag (300-7020-B20)
The Histo-Click™ click-top caps are 20 mL HDPE closures designed to seat securely with an audible click for confident, leak-resistant sealing of compatible histology and laboratory containers. Supplied non-sterile in bulk packaging of 1000 per bag, part number 300-7020-B20 is well suited to high-throughput workflows where consistent, repeatable closure is essential. The blue color supports straightforward visual identification and color-coded sample management across the laboratory.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 300-7020-B20 |
| Volume / Size | 20 mL |
| Closure Style | Click-Top Cap |
| Product Line | Histo-Click™ |
| Material | High-Density Polyethylene (HDPE) |
| Color | Blue |
| Sterility | Non-Sterile |
| Pack Size | 1000/Bag |
| Country of Origin | USA |
Applications
- Sealing histology specimen containers in anatomical pathology workflows
- Color-coded closure management for sample tracking and laboratory organization
- High-volume tissue processing environments requiring fast, reliable cap engagement
- General laboratory container closure where a secure, audible-click seal is desired
- Replacement or supplemental caps for compatible 20 mL laboratory containers
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 a reliable choice for routine specimen and reagent containment. HDPE is more rigid than low-density polyethylene and maintains dimensional stability under typical laboratory handling conditions. Note that HDPE is not recommended for autoclaving, and compatibility should be verified before use with concentrated oxidizing acids, aromatic solvents, or halogenated solvents.
Quality & Procurement
Made in USA, Caplugs® Evergreen Histo-Click™ caps are produced 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, pathology group, and grant-funded laboratory accounts.
Frequently Asked Questions
Are these click-top caps sterile?
No — the 300-7020-B20 caps are supplied non-sterile in 1000/Bag bulk packaging, consistent with routine histology and general laboratory use where sterility is not required.
How does the click-top closure work?
The Histo-Click™ design seats onto a compatible container with an audible and tactile click, providing a positive indication that the cap is fully engaged and helping to minimize accidental openings during handling and transport.
Can HDPE caps be autoclaved or used with formalin-based fixatives?
HDPE is not recommended for autoclaving. It offers good resistance to many aqueous and mildly acidic or basic solutions commonly used in histology; however, you should verify compatibility with any specific fixative or reagent — particularly concentrated or halogenated solutions — before routine use.