Two-Slide Mailers, Polypropylene, Natural — 25 × 75 mm Glass Slide Transport (240-3072-030)
These Caplugs® Evergreen two-slide mailers are designed to protect and transport pairs of standard 25 × 75 mm laboratory glass slides through postal, courier, and interlaboratory workflows. Constructed from rigid natural polypropylene, the mailer body allows visual confirmation of slide loading and label visibility on both slides before sealing — a practical safeguard against mislabeling. Supplied non-sterile in 50/Bag format, they are well suited to high-throughput anatomic pathology, cytology, and teleconsultation programs.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 240-3072-030 |
| Product Type | Two-Slide Mailer |
| Capacity | 2 glass slides per mailer |
| Compatible Slide Dimensions | 25 mm × 75 mm × 1 mm standard microscope slides |
| Material | Polypropylene (PP) |
| Color | Natural |
| Sterility | Non-Sterile |
| BPA / Phthalate Free | Yes |
| Pack Size | 50/Bag |
| Country of Origin | USA |
Applications
- Histology slide transport — paired H&E and special stain slides submitted together in a single mailer
- Cytology and hematology — simultaneous mailing of two companion slides for side-by-side review
- Immunohistochemistry (IHC) and fluorescent slide shipment requiring paired controls
- Teleconsultation and second-opinion pathology programs where duplicate slide sets travel to a remote reviewer
- Proficiency testing and interlaboratory comparison programs requiring traceable, lot-numbered packaging
- CAP/CLIA and ISO 15189 laboratory workflows where lot traceability of consumables is required
Chemical Resistance
| Reagent / Condition | Compatibility |
|---|---|
| Aqueous buffers / saline | Excellent |
| Dilute acids and bases | Excellent |
| Alcohols (ethanol, isopropanol <70%) | Good — short-term contact |
| Formalin / formaldehyde solutions | Good |
| Xylene / toluene (clearing agents) | Not recommended — prolonged exposure |
| Acetone / chloroform | Not recommended |
Quality & Procurement
Made in USA, these Caplugs® Evergreen slide mailers are produced from BPA-free, phthalate-free polypropylene resin and carry lot numbering to support CAP/CLIA and ISO 15189 traceability requirements. LabSupplies.com is an authorized dealer and ships from USA inventory, with tiered pricing available for hospitals, reference laboratories, and institutions purchasing under grant or contract.
Frequently Asked Questions
Will these mailers fit standard microscope slides from any manufacturer?
Yes — the mailers are sized for the universal 25 mm × 75 mm × 1 mm format used by virtually all glass microscope slide manufacturers, so no special slide brand is required.
Can these mailers be used for shipping slides through the postal service or courier?
Yes. The rigid polypropylene construction and protective clearance within the mailer are designed to cushion fragile glass slides during postal and courier transport, reducing the risk of breakage and contamination in transit.
Are these mailers sterile?
No — they are supplied non-sterile. For fixed, stained, or coverslipped pathology and cytology slides, sterility is not typically required; however, laboratories with specific sterility requirements should evaluate accordingly.
How does the natural color help in a slide management workflow?
The natural (translucent) polypropylene body allows technicians and pathologists to visually confirm that both slides are correctly loaded and that labels are readable before the mailer is sealed, reducing the chance of a mislabeled or missing slide reaching the recipient.