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The BSC PREFERRED MFL18123K is a corrugated document mailer box sold in a pack of 25 units. Built from 200/ECT-32-B kraft corrugated board, this mailer is designed to protect flat documents, files, and important paperwork during shipping and storage. Protective side flaps and a front outside tuck closure hold contents securely without requiring tape, glue, or staples. The box assembles in seconds, making it well-suited for high-volume shipping operations, mailrooms, and office environments where speed and material savings matter.
This mailer is intended for shipping and storing flat documents that require rigid protection against bending and crushing. The 200/ECT-32-B construction provides edge crush resistance appropriate for standard parcel and courier handling. It is a practical choice for businesses, print shops, legal offices, and shipping departments that regularly send contracts, drawings, certificates, or other flat materials requiring secure enclosure.
Designed as an OEM-style equivalent to part number S-16959. Suitable for standard document mailer applications requiring 200/ECT-32-B corrugated construction.
No tools required for assembly. Fold along pre-scored lines, engage side flaps, and close the front tuck tab to secure contents. Store flat mailers in a dry environment to maintain board integrity before use. Handle assembled mailers per carrier and postal guidelines for rigid document envelopes.
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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