In stock SKU PL420GTIN 841436045278

4.5x6" Red Invoice Enclosed Poly Envelopes - 2 Mil, Case of 1000

Pre-printed "Invoice Enclosed" red poly envelopes protect your shipping documents and ensure packing list compliance. 4.5" x 6" adhesive-backed design in durable 2 mil material. Case of 1000 units keeps your packaging costs low and your workflow efficient.
$38.46 / case of 1000$0.04 per envelope
= 1000 envelopes · Total $38.46
Request bulk pricing

Ships from the nearest of 5 US warehouses · freight calculated at checkout

30-day returns on stock items · Return policy

Inside dimensions 4 1/2" × 6"
Board / material 2 Mil Poly
Color Red
Freight class Class 60

Specifications

Inside dimensions4 1/2" × 6" (L × W)
Board / material2 Mil Poly
ColorRed
Sold asCase of 1000
Order in multiples of1
Case weight7.28 lb
Outer carton (shipping)10.0 × 7.0 × 4.5 in
LTL freight classClass 60
GTIN841436045278
SKUPL420

About this item

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

The 4.5x6" Red Invoice Enclosed Poly Envelopes - 2 Mil is a clear-face document envelope for attaching packing lists, invoices, routing slips, and receiving paperwork to cartons. Listed specs include size 4.5" x 6"; poly material; 2 Mil; case of 1000. Use it as a packing-list pouch, invoice envelope, document mailer, or carton paperwork holder when the paperwork fits the listed size.

Frequently bought with

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.

+1 (302) 216-2975 support@packrift.com Mon–Fri, Eastern Corrugated buying guide →