Bsc Preferred M4425 Square Corrugated Mailer Tubes 50-pack

Product Description

The BSC PREFERRED M4425 is a pack of 50 white square corrugated mailing tubes designed for flat shipping and fast assembly. Unlike traditional round mailing tubes, the square profile prevents rolling during handling and stacking, making packing and transit more controlled. Each tube ships flat to conserve warehouse and storage space, then folds together quickly without tape or glue. Constructed from 200/ECT-32-B white corrugated board, these tubes offer reliable crush resistance for documents, prints, posters, and similarly shaped items sent through standard parcel carriers. Packing and shipping staff in fulfillment, distribution, and trade supply operations are the primary users.

These square mailer tubes are suited for shipping and mailing applications where rolled or flat items need protection during transit. The square geometry keeps tubes stationary on conveyor lines and in storage bins, reducing sorting errors and damage. The one-piece fold-up design supports high-volume packing workflows without the need for adhesives or additional fasteners. This product is sold as a pack of 50 units and is equivalent to part number S-18262.

Key Features

• Square profile prevents rolling during storage, packing, and transit
• Ships flat to conserve storage and staging space
• Folds together without tape or glue for fast assembly
• Constructed from 200/ECT-32-B white corrugated board for reliable crush resistance
• One-piece design reduces material waste and assembly time
• Pack of 50 tubes per unit of measure

Compatibility

Equivalent to part number S-18262. Designed as a drop-in replacement for standard square corrugated mailer tubes used in document and flat-item shipping applications.

Installation Notes

No tools are required to assemble these tubes. Fold along pre-scored lines to form the square tube shape before inserting the item to be shipped. Ensure contents are secured inside before sealing the ends according to your facility's standard packing procedures. Follow carrier guidelines for maximum insert dimensions and weight limits.