Two-Slide Mailers, Polypropylene, Blue — 25 × 75 mm | 50/Bag (240-3072-B30)
These polypropylene two-slide mailers hold a pair of standard 25 × 75 mm laboratory glass slides securely during postal and courier transport, protecting fragile specimens from breakage, contamination, and moisture. Supplied non-sterile in 50/Bag bulk format, the blue body color enables instant visual identification and color-coded sorting across high-volume pathology, cytology, and teleconsultation workflows. Part number 240-3072-B30 is a Caplugs® Evergreen product manufactured in the USA.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 240-3072-B30 |
| Product Type | Two-Slide Mailer |
| Capacity | 2 Glass Slides |
| Compatible Slide Format | 25 × 75 mm standard laboratory microscope slides |
| Material | Polypropylene (PP) |
| Color | Blue |
| Sterility | Non-Sterile |
| BPA / Phthalate Free | Yes |
| Pack Size | 50/Bag |
| Country of Origin | USA |
Applications
- Histology: simultaneous mailing of paired H&E and special stain slides from the same case block
- Cytology: co-transport of companion slides for concurrent review at a receiving laboratory
- Immunohistochemistry (IHC) and fluorescent slide submission for external interpretation
- Teleconsultation and second-opinion programs requiring paired slide packages
- Proficiency testing and external quality assurance submissions under CAP, CLIA, or ISO 15189 programs
- Anatomic pathology interlaboratory referral and courier routing workflows
Chemical Resistance
| Reagent / Condition | Compatibility |
|---|---|
| Aqueous buffers / saline | Excellent |
| Dilute acids and bases | Excellent |
| Ethanol (<70%) | Good — short-term contact |
| Formalin / formaldehyde (dilute, residual) | Good — short-term contact |
| Acetone / xylene / chlorinated solvents | Not recommended |
Quality & Procurement
Made in USA, these Caplugs® Evergreen slide mailers are manufactured from BPA-free, phthalate-free polypropylene resin. Lot numbering supports traceability requirements in CAP- and CLIA-accredited laboratories as well as ISO 15189-compliant anatomic pathology facilities. LabSupplies.com is an authorized Caplugs® Evergreen dealer shipping from USA inventory, with tiered volume pricing available for hospital systems, reference laboratories, and grant-funded research institutions.
Frequently Asked Questions
What slide size do these mailers accept?
These mailers are designed for standard 25 × 75 mm laboratory glass microscope slides — the format used in the vast majority of histology, cytology, hematology, and IHC workflows. Each mailer holds two slides simultaneously.
Are these mailers suitable for mailing stained slides without damaging the stain?
Polypropylene construction is compatible with aqueous-mounted and coverslipped stained slides under typical transport conditions. Because aromatic solvents such as xylene are not recommended for prolonged contact with PP, ensure slides are fully dried and coverslipped before packaging.
Why choose blue mailers specifically?
The blue body color allows laboratories to implement color-coded slide identification systems — for example, distinguishing specimen type, case priority, or staining protocol at a glance — reducing misidentification risk in high-volume pathology receiving areas.
Do these meet traceability requirements for CAP or CLIA programs?
Yes. The mailers are lot-numbered, which supports the chain-of-custody and specimen traceability documentation requirements of CAP, CLIA, and ISO 15189 accreditation programs. Consult your laboratory's accreditation standards for any additional packaging requirements specific to your submission type.