Stop wasted packing time‚these 3x3x18 white square mailing tubes won't roll during fulfillment. Made from durable ECT-32-B corrugated, they ship flat in a 25-pack bundle and fold together without tape or glue, cutting assembly labor and storage footprint.
In stock SKU M3318

3x3x18 ECT-32-B White Square Mailing Tubes - 25 Pack

$20.43/ BUNDLE
$0.81 per unit
Sold in BUNDLE of 25
1 BUNDLE = 25 units Total $20.43
Ships from US warehouses · Shipping calculated at checkout
  • Ships from 5 US warehouses
  • Secure checkout
  • Bulk pricing on request
Specifications
SKUM3318
Dimensions3" × 3" × 18"
Material / strengthECT-32-B Corrugated
Sold asBUNDLE of 25
BrandPackrift
Freight class125
GTIN841436037334
Shipping & returns

Packrift ships from five US warehouses (Central IL, Northeast PA, South TX, Southeast GA, West CA). The nearest warehouse with stock ships your order. Final shipping cost is shown at checkout based on weight, dimensions, and ZIP.

Oversized or high-volume orders may route via LTL freight; the freight quote is calculated live at checkout.

Shipping policy · Refund policy · Support

Description

3x3x18 ECT-32-B White Square Mailing Tubes - 25 Pack is Packrift SKU M3318. Use this page to confirm the current catalog specs, price, availability, reorder path, and quote route before buying.

Buy This SKU When

  • You are ordering or reordering Packrift SKU M3318.
  • The job matches the current catalog record: size 3 x 3 x 18, white, white color, ECT-32, 25 pack.
  • You want a product page that shows the SKU, price, availability, and quote route before purchasing.

Check Before Ordering

  • Do not use it if the packed item exceeds 3 x 3 x 18 after inserts, padding, or other protection.
  • Do not assume food-contact, outdoor exposure, load rating, or regulated-use suitability unless your team verifies that requirement separately.

Verified Catalog Specs

SKU M3318
Product title 3x3x18 ECT-32-B White Square Mailing Tubes - 25 Pack
Product type Boxes - Mailers
Category family mailers
Dimensions 3 x 3 x 18
Material white
Color white
ECT or strength ECT-32
Mil thickness Not listed in current catalog data
Adhesive or closure Not listed in current catalog data
Label format Not listed in current catalog data
Pack quantity 25
Current price 19.64
Current availability In stock

Reorder and Quote Path

Use SKU M3318 and this product URL for reorders. For larger, mixed-SKU, recurring, or freight-sensitive orders, use the bulk quote path and include SKU, quantity, destination ZIP, and timing.

Related Buying Paths

FAQ

What SKU should I use to reorder?
Use Packrift SKU M3318 and the product URL on this page.
What specs are verified for this product?
The current catalog record lists size 3 x 3 x 18, white, white color, ECT-32, 25 pack.
What if I need a larger quantity or a mixed order?
Use the bulk quote path with SKU M3318, quantity, destination ZIP, and required timing.
What if a required field is not listed?
Do not infer missing specs from similar products. Treat any unlisted size, material, color, strength, closure, or pack field as not listed in current catalog data.

3x3x18 ECT-32-B White Square Mailing Tubes - 25 Pack is Packrift SKU M3318. Use this page to confirm the current catalog specs, price, availability, reorder path, and quote route before buying.

Buy This SKU When

  • You are ordering or reordering Packrift SKU M3318.
  • The job matches the current catalog record: size 3 x 3 x 18, white, white color, ECT-32, 25 pack.
  • You want a product page that shows the SKU, price, availability, and quote route before purchasing.

Check Before Ordering

  • Do not use it if the packed item exceeds 3 x 3 x 18 after inserts, padding, or other protection.
  • Do not assume food-contact, outdoor exposure, load rating, or regulated-use suitability unless your team verifies that requirement separately.

Verified Catalog Specs

SKU M3318
Product title 3x3x18 ECT-32-B White Square Mailing Tubes - 25 Pack
Product type Boxes - Mailers
Category family mailers
Dimensions 3 x 3 x 18
Material white
Color white
ECT or strength ECT-32
Mil thickness Not listed in current catalog data
Adhesive or closure Not listed in current catalog data
Label format Not listed in current catalog data
Pack quantity 25
Current price 19.64
Current availability In stock

Reorder and Quote Path

Use SKU M3318 and this product URL for reorders. For larger, mixed-SKU, recurring, or freight-sensitive orders, use the bulk quote path and include SKU, quantity, destination ZIP, and timing.

Related Buying Paths

FAQ

What SKU should I use to reorder?
Use Packrift SKU M3318 and the product URL on this page.
What specs are verified for this product?
The current catalog record lists size 3 x 3 x 18, white, white color, ECT-32, 25 pack.
What if I need a larger quantity or a mixed order?
Use the bulk quote path with SKU M3318, quantity, destination ZIP, and required timing.
What if a required field is not listed?
Do not infer missing specs from similar products. Treat any unlisted size, material, color, strength, closure, or pack field as not listed in current catalog data.

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 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
Dimensions18" L x 3" W x 3" D
ConfigurationOne-Piece, Ships Flat
Quantity Per Bundle25 Units
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 Bundle 25. 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 Asked Questions

Square tubes prevent rolling during transit, reducing product damage and packing errors. They stack efficiently, take up less shelf space, and pack faster, saving labor costs and improving shipping accuracy for B2B operations.

No. These one-piece tubes fold together instantly without tape, glue, or additional materials. Assembly is fast, cost-effective, and reduces waste, ideal for high-throughput fulfillment centers.

Ideal for rolled documents, blueprints, posters, artwork, catalogs, promotional materials, and cylindrical items up to 3" diameter. The 18" length accommodates standard letter-size documents when rolled.

Yes. ECT-32-B provides robust crush resistance and edge crush strength suitable for most mailed goods. For extremely fragile items, add interior padding or use multiple tubes for added protection during shipping.

Technical Specifications

ConfigurationOne-Piece, Ships Flat
Quantity Per Bundle25 Units
RecyclableYes
Color White
Strength / Material ECT-32-B Corrugated
Dimensions (Internal) 3" × 3" × 18" (L × W × H)

Shipping Information

Outer Carton Dimensions

3" × 3" × 18" (L × W × H)

Unit of Measure

BUNDLE

Qty Per Shipping Unit

25 PER BUNDLE

LTL Freight Class

Class 125

Delivery Method

Shown at checkout

Processing and delivery timelines vary by product, warehouse, order size, and destination. Freight-sensitive or oversized items may require LTL delivery or a custom quote before shipment.

Checkout shows available shipping options for the selected SKU and quantity. Use the shipping and refund policy links for current policy details before ordering.

For larger, recurring, freight-sensitive, or mixed-SKU orders, send the SKU or product link, quantity, delivery ZIP code, receiving notes, and timing to support@packrift.com.

ORDER SUPPORT

Product Support

Specs, case quantities, and availability are listed on each product page. For bulk, mixed-SKU, or LTL freight orders, email support@packrift.com with the SKU, quantity, and delivery ZIP.

Use product support for fit, larger or recurring order, return, or order-issue questions. When price and Add to Cart are shown, checkout remains the direct ordering path.

Need a sample, fit check, or substitution review? Contact product support with the SKU, selected option, order quantity, and use case. Support will confirm the available path for that item.

Contact product support
Secure checkout LTL freight available on case/skid orders

Buyer guides

Buying notes and spec resources stay here instead of taking space above the cart.

View all guides →
Use this product as the source 3x3x18 ECT-32-B White Square Mailing Tubes - 25 Pack

Compare resources using the current product page data: SKU M3318 , type Boxes - Mailers , sold-as unit BUNDLE / pack count 25 PER BUNDLE . Confirm the product page price, availability, and selected variant before ordering.

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