Square tubes eliminate rolling chaos‚pack and ship faster than round tubes. These 43" x 3" x 3" white corrugated mailing tubes fold flat for storage and assemble without tape or glue. Get 25 tubes per bundle at the lowest cost per unit.
In Stock SKU: M3343

43" x 3" x 3" White Square Mailing Tubes ECT-32-B Corrugated - 25 Pack

43" x 3" x 3" White Square Mailing Tubes ECT-32-B Corrugated - 25 Pack. Use this item for shipments or presentation packs where the product fits the listed inside dimensions and closure style. Listed specs include size 43 x 3 x 3 in; material corrugated; sold as 25 Pack. Confirm SKU, pack count, price, availability, and checkout delivery before ordering.

$64.34 / BUNDLE (25 PER BUNDLE)
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Confirm this specSKU M3343

43" x 3" x 3" White Square Mailing Tubes ECT-32-B Corrugated - 25 Pack: compare by inside dimensions, board type, closure, color, and case quantity. Confirm SKU, sold-as unit, price, availability, and checkout delivery before ordering.

Size
43 x 43 x 3 in
Material
ECT-32-B Corrugated
Color
White
Sold as
BUNDLE (25 PER BUNDLE)
Freight class
125
Material
ECT-32-B White Corrugated
Dimensions
43" L x 3" W x 3" H
Configuration
One-Piece Flat-Ship Design
Good fit for

Good fit for shipments or presentation packs where the product fits the listed inside dimensions and closure style. Confirm inside dimensions, board type, closure, color, and whether the item needs extra cushioning.

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SKU
M3343
Product
43" x 3" x 3" White Square Mailing Tubes ECT-32-B Corrugated - 25 Pack
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Confirm dimensions, material, pack count, price, and availability on this page before ordering.

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Best For

Good fit for shipments or presentation packs where the product fits the listed inside dimensions and closure style. Confirm inside dimensions, board type, closure, color, and whether the item needs extra cushioning.

How to Choose the Right Packaging

The buying decision should be based on the exact inside dimensions, board type, closure, color, and case quantity, not the category name alone. Use the current product page as the source of truth for SKU, variant, price, availability, sold-as unit, and checkout delivery.

Specs at a Glance

MaterialECT-32-B White Corrugated
Dimensions43" L x 3" W x 3" H
ConfigurationOne-Piece Flat-Ship Design
Bundle Quantity25 Units Per Bundle
RecyclableYes
Common Use Cases
  • Packing small ecommerce orders, kits, samples, gifts, documents, or parts in a folding mailer box.
  • Standardizing a branded or unbranded mailer-box size for repeat shipments.
  • Reordering by exact product link, SKU, or sold-as quantity.
  • Adding the item to a mixed-SKU or recurring supply request when quantity, delivery ZIP code, or timing matters.
What You'll Receive
  • This listing is sold as 25 Pack. Check the current product page for variant details, price, availability, and pack count before checkout.
Shipping & Packaging

Delivery options and timing are shown at checkout based on item and destination. For larger quantities, freight-sensitive items, mixed-SKU needs, or recurring supply, send the product link or SKU, quantity, delivery ZIP code, receiving notes, and timing to support@packrift.com.

Frequently Bought Together

Related supplies

Frequently Asked Questions

Square tubes eliminate rolling and shifting during shipping, reducing product damage and packing time. They stack efficiently in boxes and vehicles, lower dimensional weight charges, and pack faster without requiring tape or glue, cutting assembly costs by up to 40%.

ECT-32-B is an edge crush test rating of 32 pounds per inch, indicating strong stacking strength and durability for protecting contents through multiple handling and transport cycles. It's ideal for heavy documents, rolled materials, and repeated shipping.

No tools, tape, or glue required, simply fold the one-piece design together in seconds. A single worker can assemble 200+ tubes per hour, making bulk shipping operations significantly faster and more cost-effective.

Yes. The 43" length complies with UPS, FedEx, and USPS length restrictions, and ECT-32-B construction meets carrier durability standards for ground and express shipping without additional reinforcement.

Technical Specifications

ConfigurationOne-Piece Flat-Ship Design
Bundle Quantity25 Units Per Bundle
RecyclableYes
Color White
Strength / Material ECT-32-B Corrugated
Dimensions (Internal) 43"" × 43"" × 3"" (L × W × H)

Product Downloads

Shipping Information

Outer Carton Dimensions

52.5" × 17.25" × 3.0" (L × W × D)

Unit of Measure

BUNDLE

Qty Per Shipping Unit

25 PER BUNDLE

LTL Freight Class

Class 125

Delivery Method

Shown at checkout

ORDER SUPPORT

Product Support

We aim to show product specs, case quantities, and availability clearly. Contact support if an item does not match the listed product details.

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Buyer guides

Pick the right material, size, and gauge before you order.

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How to Measure for Shipping

Measure inside and outside dimensions before choosing shipping supplies or estimating DIM-weight costs.

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