4 3/8 x 4 3/8 x 2 in ECT-32 White Corrugated Mailers 50-Pack MLR1
$26.58
/ bundle of 50$0.53 per mailer
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Ships from the nearest of 5 US warehouses · freight calculated at checkout
30-day returns on stock items · Return policy
Inside dimensions
4 3/8" × 4 3/8" × 2"
Board / material
ECT-32-B Corrugated
Color
White
Freight class
Class 125
Specifications
| Inside dimensions | 4 3/8" × 4 3/8" × 2" (L × W × H) |
|---|---|
| Board / material | ECT-32-B Corrugated |
| Color | White |
| Sold as | Bundle of 50 |
| Order in multiples of | 50 |
| Bundle weight | 4.94 lb |
| Outer carton (shipping) | 15.75 × 14.0 × 5.75 in |
| LTL freight class | Class 125 |
| SKU | MLR1 |
About this item
SKU MLR1 — 4 3/8" × 4 3/8" × 2", ECT-32-B Corrugated, White. Sold as a bundle of 50, shipped from US warehouses.
4 3/8 x 4 3/8 x 2" white corrugated mailers in ECT-32 corrugated board, packed 50 per pack (SKU MLR1); this is a second listing of the same BOX case stock at the same price.
Sized for shipping and fulfillment work; closes with tape or the built-in flap. Order by the pack of 50.
Common questions
What does ECT-32-B corrugated rating mean for my operation?
ECT (Edge Crush Test) 32-B provides 32 pounds per inch of edge crush strength, ensuring reliable stacking performance in warehouse environments. This rating delivers professional protection for small parcels without over-engineering, keeping material costs competitive while maintaining durability standards.
How much time do one-piece mailers save vs. traditional boxes?
Fold-and-tuck design eliminates assembly steps, no tape, glue, or staples needed. Operators can prepare mailers in seconds, reducing fulfillment labor by up to 60% compared to RSC (regular slotted container) boxes that require taping and sealing.
Can these mailers stack safely during storage and transport?
Yes. The double-wall corrugated construction on front and sides provides crush resistance rated to ECT-32-B standards. When properly loaded, mailers maintain structural integrity through multi-unit stacking and handle typical freight conditions without compromise.
How do these mailers affect shipping costs?
The lightweight profile and compact 4 3/8" x 4 3/8" x 2" footprint reduce dimensional weight charges on parcel carriers (UPS, FedEx, USPS). Combined with the zero-assembly design, total cost-per-shipment typically decreases 15-25% compared to heavier corrugated alternatives.
Order support
Questions on specs or freight?
Send the SKU, quantity, and delivery ZIP and we will confirm specs, availability, and freight before you order.