In stock SKU MRX4X

6.5x3.625x2.5 ECT-32 White Corrugated Mailers 50-Pack MRX4X

$24.38 / bundle of 50$0.49 per mailer
= 50 mailers · Item subtotal $24.38

Before shipping and tax. Final discounts and total are confirmed in the cart.

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Volume pricing — applied automatically in the cart
Quantity (bundle)Item-subtotal discount
1–2Base item price
3–53% off qualifying item subtotal
6+5% off qualifying item subtotal
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Shipping & returns details

Ships from U.S. warehouses. 30-day returns on unopened stock items.

Shipping cost and timing depend on the product, quantity and destination. Parcel or freight service is used as appropriate. Shipping discounts apply only to qualifying orders and rates.

Standard delivery is to street addresses in the contiguous U.S. Eligible returns must be unused and in original packaging; return shipping may apply.

Shipping policyReturn policy

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Inside dimensions 6 1/2" × 3.625" × 2 1/2"
Board / material ECT-32-B Corrugated
Color White
Freight class Class 125

From our customers

“The packaging is sturdy, well-made, and looks professional. We’re really pleased with the quality.”

Kerri PorterAmerican Vulkan

“They helped us choose the right packaging for our products and made ordering easy.”

Scott HobbsPackrift customer

“Ordering was easy, everything arrived as described, and we’ll definitely order again.”

Cheryl ChristSimply Home Relocation
Questions before you order?Talk to us

Specifications

Inside dimensions6 1/2" × 3.625" × 2 1/2" (L × W × H)
Board / materialECT-32-B Corrugated
ColorWhite
Sold asBundle of 50
Physical units per order increment50 (one bundle)
Bundle weight6.96 lb
Outer carton (shipping)15.5 × 14.5 × 5.5 in
LTL freight classClass 125
SKUMRX4X

About this item

SKU MRX4X — 6 1/2" × 3.625" × 2 1/2", ECT-32-B Corrugated, White. Sold as a bundle of 50, shipped from US warehouses.

6.5x3.625x2.5" white corrugated mailers in ECT-32 corrugated board, packed 50 per pack (SKU MRX4X); 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 mean, and why does it matter for my operation?
ECT (Edge Crush Test) 32-lb rating indicates the mailer withstands 32 pounds of crushing force per linear inch. This mid-grade specification balances protection and cost, making it ideal for lightweight items. It exceeds requirements for items under 5 lbs and reduces per-unit packaging spend versus higher ECT ratings.
How much labor time do these one-piece mailers save versus traditional boxes?
Fold-and-tuck design requires no tape, glue, or staples, reducing assembly time to 3-5 seconds per mailer versus 15-20 seconds for taped boxes. For a 500-unit daily volume, this saves 1.5+ labor hours per day or ~$20 in fulfillment labor costs.
Will these mailers fit my existing conveyor and packing line?
Yes. The compact 61/2 3, Öù 21/2" footprint integrates directly with standard pick-and-pack conveyor systems and fits USPS Priority Mail, UPS Ground, and FedEx 2-day dimensional weight limits. Pre-folded design allows high-speed hand packing.
How do these compare to padded mailers or polywrap alternatives?
Corrugated mailers provide crush resistance and stacking strength versus plastic mailers, support better recyclability (increasing sustainability scores), and cost 20-30% less per unit. Double-wall construction on front/sides protects contents without added film layers, reducing material waste.

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.