3x3x48 White Square Mailing Tubes 25-Pack
$94.28
/ bundle of 25$3.77 per tube
Request bulk pricing
| Quantity (bundle) | Item-subtotal discount |
|---|---|
| 1–2 | Base item price |
| 3–5 | 3% off qualifying item subtotal |
| 6+ | 5% off qualifying item subtotal |
In stock · ships within 1 business day from the nearest of 5 US warehouses (IL, PA, TX, GA, CA) · 1–5 business days in transit · freight calculated at checkout · free ground shipping on orders over $99 (parcel rates up to $29.95) and over $500 (up to $120)
30-day returns on stock items · Return policy
Inside dimensions
3" × 3" × 48"
Board / material
ECT-32-B Corrugated
Color
White
Freight class
Class 125
Specifications
| Inside dimensions | 3" × 3" × 48" (L × W × H) |
|---|---|
| Board / material | ECT-32-B Corrugated |
| Color | White |
| Sold as | Bundle of 25 |
| Physical units per order increment | 25 (one bundle) |
| Bundle weight | 15.44 lb |
| Outer carton (shipping) | 57.0 × 17.0 × 3.0 in |
| LTL freight class | Class 125 |
| GTIN | 841436089142 |
| SKU | M3348 |
About this item
SKU M3348 — 3" × 3" × 48", ECT-32-B Corrugated, White. Sold as a bundle of 25, shipped from US warehouses.
The 3x3x48 White Corrugated Square Mailing Tubes is a corrugated mailer for books, catalogs, apparel, subscription kits, samples, documents, and small e-commerce orders. Listed specs include inside dimensions 3" x 3" x 48"; white material; bundle of 25. The mailer format works when the product needs a presentation-style carton or compact shipping box instead of a standard RSC case.
Ideal for shipping posters, rods, artwork, banners, lighting, and rolled goods. A sturdy, reliable choice for small-business, Etsy, and ecommerce shippers.
Common questions
Why choose square tubes over round mailing tubes?
Square tubes eliminate rolling during transit, reducing packing time and product damage. They stack efficiently on pallets, saving warehouse space and shipping costs while providing protection for rolled items.
What is ECT-32-B corrugated material?
ECT-32-B is an edge crush test rating indicating 32 pounds per inch of corrugated strength. This material meets ISTA and shipping standards for medium-to-heavy-duty protection across domestic and international shipments.
Do these tubes require tools or adhesive to assemble?
No. These one-piece tubes fold together by hand without tape, glue, or equipment. Assembly takes seconds, making them ideal for high-volume shipping operations.
Are these tubes USPS and carrier-compliant?
Yes. These white corrugated square tubes meet UPS, FedEx, and USPS size and material requirements for Priority Mail and parcel shipping programs.
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.