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The BSC PREFERRED MFL18122 is a white corrugated mailer box engineered for secure document and flat-item shipment. Built from 200/ECT-32-B corrugated board, the box features protective side flaps and a front outside tuck closure that locks contents in place without tape, glue, or staples. The tool-free assembly makes it practical for high-volume shipping environments where speed and consistency matter. Each pack contains 50 units, making it a straightforward restocking item for mailrooms, warehouses, and distribution operations.
This mailer is suited for shipping documents, flat media, prints, and similar items that require rigid protection during transit. The tuck-and-flap closure design keeps contents secure without additional fasteners, reducing prep time per shipment. It fits standard fulfillment workflows and works well in both small business and commercial shipping operations. The white corrugated exterior also accepts labels and print clearly for clean outbound presentation.
Designed as a direct equivalent to part number S-11231. Suitable for standard document mailer applications in mailroom, warehouse, and fulfillment environments.
No tools required for assembly. Fold along pre-scored lines, tuck side flaps inward, and close the front tuck flap to secure contents. Store flat in a dry location to maintain board integrity before use. Follow standard packaging guidelines for weight limits consistent with ECT-32-B rated corrugated materials.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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