In stock SKU PL420

4.5x6 2 Mil Red Invoice Enclosed Packing List Envelopes 1000/Case PL420

$43.47 / case of 1000$0.04 per envelope
= 1000 envelopes · Item subtotal $43.47

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 (case)Item-subtotal discount
1–2Base item price
3–53% off qualifying item subtotal
6+5% off qualifying item subtotal
Shipping & deliveryCheck cost to your ZIP code
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 4 1/2" × 6"
Board / material 2 Mil Poly
Color Red
Freight class Class 60

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 dimensions4 1/2" × 6" (L × W)
Board / material2 Mil Poly
ColorRed
Sold asCase of 1000
Physical units per order increment1
Case weight7.28 lb
Outer carton (shipping)10.0 × 7.0 × 4.5 in
LTL freight classClass 60
SKUPL420

About this item

SKU PL420 — 4 1/2" × 6", 2 Mil Poly, Red. Sold as a case of 1000, shipped from US warehouses.

4.5x6 2 mil red invoice enclosed packing list envelopes 1000 per case PL420. 2 mil film. Keeps shipping documents fixed to the carton and readable on arrival. Shoppers also call these packing slip pouches, invoice enclosed envelopes, or document sleeves. This is the red version; clear and orange options are separate listings. 1,000 per case; order by the case of 1,000.

Common questions

Are these envelopes water-resistant?
Yes. The 2 mil polyethylene material provides moisture protection to keep invoices and packing lists dry during weather exposure or handling in humid environments.
Can these envelopes be used with thermal printers or label makers?
These envelopes come pre-printed with "Invoice Enclosed" text. If you need custom printing, we recommend our blank envelope options. The adhesive backing makes them compatible with standard package application methods.
What is the difference between 2 mil and thicker poly materials?
2 mil poly provides cost-effective protection for standard shipping conditions while remaining flexible and easy to apply. Thicker materials offer additional durability for high-handling or harsh environments, but increase per-unit costs.
How many cases should I order for monthly shipping volumes?
With 1,000 envelopes per case, calculate your monthly invoice volume and order accordingly. Case pricing provides significant per-unit savings compared to smaller quantities, making bulk ordering more cost-efficient for regular shipping operations.

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.