Double, Center Windows First Class Mail Envelope – 9-1/2″ x 12″

Large “Official First Class Mail” Envelopes with 2 Windows in the Center

Easily mail large documents and tax returns in this double window 1st Class Mail envelope. Simply print an address cover sheet with your software and documents are ready to mail.

Order as few as 50 envelopes and get big discounts on larger quantities!

With a 9-1/2″ x 12″ size, the envelope easily mails stores large documents with many pages. The windows have cellophane for security.

Choose a moisture seal or self-adhesive flap to see pricing.
Minimum 50 / Multiples of 50

Product Details

9-1/2 x 12 First Class Mail Envelope with Double, Center Windows in Vertical Portrait Format with Blue Border

In stock and ready to ship! Easily mail tax returns or large documents in this official, first class mail envelope. It has 2 large cellophane windows in the center for slipsheets printed from CS UltraTax™ or ATX™ tax preparation software, or create your own address cover sheets.

Get big discounts on first class envelopes – no coupon code needed with The Tax Form Gals!

With an oversized, large 9-1/2″ x 12″ size, it’s easy to insert large tax returns or important documents, and deliver them in an official presentation.

Double, Center Window 1st Class Envelope Specs:

Style: Portrait
Size: 9-1/2″ x 12″
Seal Type: Self Seal or Moisture Seal Flap
Flap Opening: Short End
Paper Weight: 28# envelope stock
Print Color: Blue
Text: First Class Mail

Top Window Size: 2″ x 6″
Top Window From Left Side: 2″
Top Window From Bottom: 7-3/16″
Bottom Window Size: 2″ x 6″
Bottom Window From Left Side: 2″
Bottom Window From Bottom: 4-13/16″

Tax Software Compatibility: CS UltraTax™, ATX™

Item# PEO41 – Self-Adhesive Flap
Item# PES45 – Moisture Seal Flap