Engineered ECT-32-B white corrugated mailers in 4x4x3 dimensions deliver crush-resistant protection with zero assembly time‚just fold and ship. Each 50-pack bundle eliminates tape, glue, and staples while cutting postage weight and handling labor. Perfect for small item fulfillment operations managing high volume.
In stock SKU M443

4x4x3 ECT-32-B White Corrugated Mailers - Crush Resistant, 50/Bundle

$21.35/ BUNDLE
$0.42 per unit
Sold in BUNDLE of 50
1 BUNDLE = 50 units Total $21.35
Ships from US warehouses · Shipping calculated at checkout
  • Ships from 5 US warehouses
  • Secure checkout
  • Bulk pricing on request
Specifications
SKUM443
Dimensions4" × 4" × 3"
Material / strengthECT-32-B Corrugated
Sold asBUNDLE of 50
BrandPackrift
Freight class125
GTIN812578007905
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

4x4x3 ECT-32-B White Corrugated Mailers - Crush Resistant, 50/Bundle is Packrift SKU M443. 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 M443.
  • The job matches the current catalog record: size 4 x 4 x 3, white corrugated, white color, ECT-32, 50 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 4 x 4 x 3 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 M443
Product title 4x4x3 ECT-32-B White Corrugated Mailers - Crush Resistant, 50/Bundle
Product type Boxes - Mailers
Category family mailers
Dimensions 4 x 4 x 3
Material white corrugated
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 50
Current price 20.53
Current availability In stock

Reorder and Quote Path

Use SKU M443 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 M443 and the product URL on this page.
What specs are verified for this product?
The current catalog record lists size 4 x 4 x 3, white corrugated, white color, ECT-32, 50 pack.
What if I need a larger quantity or a mixed order?
Use the bulk quote path with SKU M443, 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.

4x4x3 ECT-32-B White Corrugated Mailers - Crush Resistant, 50/Bundle is Packrift SKU M443. 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 M443.
  • The job matches the current catalog record: size 4 x 4 x 3, white corrugated, white color, ECT-32, 50 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 4 x 4 x 3 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 M443
Product title 4x4x3 ECT-32-B White Corrugated Mailers - Crush Resistant, 50/Bundle
Product type Boxes - Mailers
Category family mailers
Dimensions 4 x 4 x 3
Material white corrugated
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 50
Current price 20.53
Current availability In stock

Reorder and Quote Path

Use SKU M443 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 M443 and the product URL on this page.
What specs are verified for this product?
The current catalog record lists size 4 x 4 x 3, white corrugated, white color, ECT-32, 50 pack.
What if I need a larger quantity or a mixed order?
Use the bulk quote path with SKU M443, 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

Ideal for fulfillment centers and e-commerce operations shipping small, lightweight items like cosmetics, electronics accessories, and promotional merchandise. The 4" x 4" x 3" dimension maximizes pallet density while ECT-32-B construction ensures crush resistance during multi-level stacking and transit, reducing damage claims and freight costs per unit.

How to choose

One-piece fold-and-tuck design eliminates assembly labor and material waste, boxes deploy in seconds without tape, glue, or staples. Double-wall corrugated protection on front and sides provides crush resistance rated for stacking loads, while the lightweight white corrugated construction reduces dimensional weight charges on parcel carriers.

Specs at a Glance

MaterialECT-32-B White Corrugated
Dimensions4" L x 4" W x 3" H
Packing ConfigurationOne-Piece Fold-and-Tuck (No Assembly Required)
Quantity Per Bundle50 Count
RecyclableYes
Common Use Cases
  • Small product e-commerce fulfillment (jewelry, cosmetics, electronics) Subscription box and promotional item shipping Sample and literature distribution Cross-docking and third-party logistics operations Direct-to-consumer retail shipping programs
What You'll Receive
  • 50 x 4x4x3 White Corrugated Mailers (flat-packed, ready to fold)
Shipping & Packaging

Bundle arrives flat-packed to minimize inbound freight costs. Each mailer folds to finished dimensions; 50-count bundle fits efficiently on standard pallets for high-volume distribution centers.

Frequently Asked Questions

ECT (Edge Crush Test) 32-B indicates the corrugated can withstand 32 pounds of edge crush force. This rating ensures the mailer resists crushing during multi-level stacking in warehouses and on trucks, reducing damage claims and protecting your reputation. ECT-32-B is standard for small parcel and lightweight item protection.

One-piece mailers deploy in 2-3 seconds per unit with zero assembly steps. A typical 500-unit daily volume saves 25+ labor minutes compared to tape-sealed boxes. Over a year, that's 100+ hours of fulfillment labor recovered, significant for high-volume operations managing per-unit fulfillment costs.

Yes. ECT-32-B construction is rated for stacking loads typical of pallet configurations. Filled mailers can safely stack 8-10 levels high, depending on product weight. Always confirm final stack height with your specific product weight to optimize pallet density and freight efficiency.

Yes. White corrugated mailers meet USPS, UPS, and FedEx dimensional and material standards for domestic and international parcel service. The recyclable white exterior also supports sustainable shipping credentials if your brand markets eco-friendly logistics.

Technical Specifications

Packing ConfigurationOne-Piece Fold-and-Tuck (No Assembly Required)
Quantity Per Bundle50 Count
RecyclableYes
Color White
Strength / Material ECT-32-B Corrugated
Dimensions (Internal) 4" × 4" × 3" (L × W × H)

Shipping Information

Outer Carton Dimensions

4" × 4" × 3" (L × W × H)

Unit of Measure

BUNDLE

Qty Per Shipping Unit

50 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 4x4x3 ECT-32-B White Corrugated Mailers - Crush Resistant, 50/Bundle

Compare resources using the current product page data: SKU M443 , type Boxes - Mailers , sold-as unit BUNDLE / pack count 50 PER BUNDLE . Confirm the product page price, availability, and selected variant before ordering.

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