500 – A4 UN3373 Poly Envelopes | 230mm x 350mm
Pack Quantity: 500 Mailing Bags per Box
Plastic Packaging Tax Exempt – This mailing bag contains a minimum of 30% PCW recycled plastic
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10 in stock (can be backordered)
UN3373 A4 Poly Envelopes
Our UN3373 A4 poly envelopes are designed for the secure transportation of biological substances, specimens and diagnostic samples classified as Category B (UN3373). Manufactured from durable polythene, these envelopes provide a practical and secure packaging solution for laboratories, healthcare providers, medical organisations and other businesses transporting biological samples.
The A4 format is suitable for transporting smaller documents, samples and associated paperwork, while the strong polythene construction helps protect contents during handling and transit.
The envelopes feature a secure self-seal closure to help prevent accidental opening and provide additional security throughout transportation. The outer surface can also be printed with the required UN3373 Biological Substance, Category B identification, making the packaging easy to recognise during handling and delivery.
Manufactured by Bayard Packaging in the UK, our UN3373 A4 poly envelopes can be supplied as a standard stock product or customised with additional printing to meet your specific requirements.
Key features:
- A4 size – ideal for larger biological samples and documentation
- Suitable for UN3373 Category B biological substances
- Durable polythene construction
- Secure self-seal closure
- Clearly identifiable UN3373 labelling
- Suitable for medical, laboratory and diagnostic applications
- Custom printing available
- Manufactured in the UK
- Available in a range of quantities
For more information about our UN3373 A4 poly envelopes, or to discuss a bespoke printed requirement, CONTACT US for a free, no-obligation quotation.
Additional information
| Weight | 6 kg |
|---|---|
| Dimensions | 40 × 28 × 15 cm |




