In stock SKU M741GTIN 848109007670

7x4x1 ECT-32-B White Corrugated Mailers - Crush Resistant, 50/Bundle

ECT-32-B white corrugated mailers engineered for lightweight shipping without sacrifice. These 7x4x1 crush-resistant mailers fold in seconds–no tape, glue, or staples required. Bundle of 50 delivers maximum freight efficiency and labor savings for high-volume fulfillment operations.
$32.92 / bundle of 50$0.66 per mailer
= 50 mailers · Total $32.92
Request bulk pricing

Ships from the nearest of 5 US warehouses · freight calculated at checkout

30-day returns on stock items · Return policy

Inside dimensions 7" × 4" × 1"
Board / material ECT-32-B Corrugated
Color White
Freight class Class 125

Specifications

Inside dimensions7" × 4" × 1" (L × W × H)
Board / materialECT-32-B Corrugated
ColorWhite
Sold asBundle of 50
Order in multiples of50
Bundle weight5.32 lb
Outer carton (shipping)16.0 × 12.0 × 6.0 in
LTL freight classClass 125
GTIN848109007670
SKUM741

About this item

SKU M741 — 7" × 4" × 1", ECT-32-B Corrugated, White. Sold as a bundle of 50, shipped from US warehouses.

7x4x1 ECT-32-B White Corrugated Mailers, 50/Bundle. Use this item for shipments or presentation packs where the product fits the listed inside dimensions and closure style. Listed specs include size 7 x 4 x 1 in; material corrugated; sold as Bundle of 50. Confirm SKU, pack count, price, availability, and checkout delivery before ordering.

Frequently bought with

Common questions

What does ECT-32-B mean and how does it affect protection?
ECT (Edge Crush Test) 32-B indicates the corrugated meets 32 lbs per linear inch of crush resistance, meeting ASTM D5628 standards. This rating ensures reliable stacking and compression performance during multi-box shipments, reducing content damage in high-volume fulfillment environments.
How much assembly labor does one-piece design save versus traditional boxes?
Fold-and-tuck design eliminates tape, glue, and stapling steps, operators can assemble 200+ mailers per hour versus 60-80 with taped boxes. For a 10,000-unit monthly volume, this saves approximately 45-50 labor hours.
What is the maximum recommended weight per mailer?
Due to 1" height and ECT-32-B construction, we recommend maximum 2-3 lbs per mailer for optimal protection. Heavier items may require larger corrugated options (7x4x2 or larger) to maintain performance and prevent box collapse.
Are these mailers compatible with automated packing systems?
Yes. The one-piece design and consistent fold architecture integrate smoothly with most semi-automated and automated pick-and-pack systems. Pre-scored creases ensure reliable, repeatable folding without equipment jams or misfeeds.

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.

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