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Window dimensions: the top window is 2” x 6”; 2” from left and 7-3/16” from bottom while the bottom window is 2” x 6”; 2” from left and 4-13/16’ from the bottom. The way you present your work needs to match your firm's professionalism every step of the way.
Both the recipient address and return address show through the envelope windows. The first class mail envelope has a remoistening seal, blue diamond border, ATX, 1040, and First Class Mail printed on its face; with a portrait orientation for the documents with double windows to simplify mailing by printing the cover sheet with the appropriate software. Easily mail large documents and tax returns with an address cover sheet, they are a perfect solution to quickly seal and protect data. Moisture seal, 9-1/2" x 12".





Please don’t lick these envelopes; quality Park Redi-Strip closures don’t require moisture—just peel and press for a safe, dry, sanitary seal. Elegant 28 lb white wove; envelopes lend a clean, professional look to mailings; strong enough for shipping or organizing around the office.



Use them to send business letters, and so much more. No matter what you decide to use these envelopes for, professional mailings, making them perfect for things like letters, personal mail, whatever is inside is sure to arrive in perfect condition.
Open-end envelope: these open-end 9” x 12” catalog envelopes have a convenient vertical design. Text-weight paper stock, we offer these envelopes in a variety of other color options as well. Made from 80 lb. Peel & press seal: the self-seal design of these envelopes is perfect for anyone who doesn’t want to lick or use a moistener on every single envelope — it’s a huge time-saver! Simply peel off the protective strip, and seal. If this shade of black isn’t right for you, this is the item for you.

You can count on our poly mailers to keep your packages safe until they reach their destination. And the shipping Bags used of opaque materials convenient for protect your privacy.
Prevent damages and keep your customers happy! Dimension - size: 9. 5" x 13. 5" | pack of 25 | Color: White. These mailers are tear-resistant, puncture-resistant, and waterproof. Strong & durable construction - our poly mailers are crafted with only the finest materials. Simply peel and fold over to seal each package safely and securely. Perfect for business and retail use.
1. ComplyRight
#ad
ComplyRight First Class Double Window Envelope | 9.5 x 12 | Tax Mailer | Pack of 50
#adComplyRight #ad - The cellophane window allows the taxpayer name and address to clearly show through. Complyright: at complyright, state, tax software, our mission is to free employers from the burden of tracking and complying with the complex web of federal, labor law solutions, and local employment laws. Complyright is the market leader in government compliant products such as tax forms, HR products and services, and health insurance claim forms.Window dimensions: the top window is 2” x 6”; 2” from left and 7-3/16” from bottom while the bottom window is 2” x 6”; 2” from left and 4-13/16’ from the bottom. The way you present your work needs to match your firm's professionalism every step of the way.
More information #ad
Tax mailer envelope: complyright first class double window envelope serves as a multi-purpose tax return envelope that will dress up every tax return and report that leaves your office. Tax products: complyright first class self seal double window envelope is software compatible to be used with Ultra Tax by Creative Solutions, and Max software package. Both the recipient address and return address show through the envelope windows. The first class mail envelope has a remoistening seal, blue diamond border, ATX, 1040, and First Class Mail printed on its face; with a portrait orientation for the documents with double windows to simplify mailing by printing the cover sheet with the appropriate software. Easily mail large documents and tax returns with an address cover sheet, they are a perfect solution to quickly seal and protect data. Moisture seal, 9-1/2" x 12".
Brand | ComplyRight #ad |
Manufacturer | ComplyRight #ad |
Height | 12 Inches |
Length | 9.5 Inches |
Weight | 0.12 Pounds |
Width | 0.2 Inches |
Part Number | PES45AMZ |
Model | PES45AMZ |
More information #ad
2. Generic
#ad
Photo Envelopes, 9.5" x 12" plain white envelope with 5" x 6" plastine window. 100 pack|5566
#adGeneric #ad - 5" x 6" plastine window. 24# white wove. Side open. Single resealable latex close tab. 9. 5" x 12" envelope.More information #ad
Brand | Generic #ad |
Manufacturer | MackayMitchell Envelope Company #ad |
Part Number | 5566-100 |
More information #ad
3. Generic
#ad
9.5" x 12" envelope with 5" x 6" plastine window. 100 pack|5826, Photo Envelopes
#adGeneric #ad - Side open. 9. 5" x 12" envelope. 24# white wove. 5" x 6" plastine window. Single resealable latex close tab.More information #ad
Brand | Generic #ad |
Manufacturer | MackayMitchell Envelope Company #ad |
Part Number | 5826-100 |
More information #ad
4. Generic
#ad
9.5" x 12" floral envelope with 5" x 6" plastine window. 100 pack|5830, Photo Envelopes
#adGeneric #ad - 5" x 6" plastine window. Side open. 9. 5" x 12" envelope. 24# white wove. Single resealable latex close tab.More information #ad
Brand | Generic #ad |
Manufacturer | MackayMitchell Envelope Company #ad |
Part Number | 5830-100 |
More information #ad
5. Generic
#ad
Photo Envelopes, 9.5" x 12" garden bloom envelope with 5" x 6" plastine window. 100 pack|5550
#adGeneric #ad - 5" x 6" plastine window. 9. 5" x 12" envelope. Side open. 24# white wove. Single resealable latex close tab.More information #ad
Brand | Generic #ad |
Manufacturer | MackayMitchell Envelope Company #ad |
Part Number | 5550-100 |
More information #ad
6. Quality Park
#ad
28 lb White Wove Paper, 100 per Box QUA44682, Quality Park 9-1/2 x 12-1/2 Catalog Mailing Envelopes, Redi-Seal Self Seal Envelope Closure
#adQuality Park #ad - Stock up with boxes of 100 durable quality park 9 1/2 x 12 1/2 catalog envelopes; in crisp bright white paper with time-saving peel and seal closures.Please don’t lick these envelopes; quality Park Redi-Strip closures don’t require moisture—just peel and press for a safe, dry, sanitary seal. Elegant 28 lb white wove; envelopes lend a clean, professional look to mailings; strong enough for shipping or organizing around the office.
More information #ad
A great value; large envelopes are an economical way to send manuscripts, certificates or other documents you’d rather mail flat. Inkjet printer compatible and perfect for use with address labels; not recommended for the laser printer.Brand | Quality Park #ad |
Manufacturer | 0 #ad |
Height | 3 Inches |
Length | 12.8 Inches |
Weight | 0.06 Pounds |
Width | 9.8 Inches |
Part Number | QUA44682 |
Model | QUA44682 |
More information #ad
7. EGPChecks
#ad
EGP Double Window Tax Organizer Mailing Envelope, Peel and Seal, Size 9.5 x 11.5, Quantity 100
#adEGPChecks #ad - Text on envelope front reads: first class and imporTANT INFORMATION ENCLOSED. Bottom window: size 1 1/4 x 4 1/2, from left 15/16, from bottom 6 13/16.More information #ad
Envelope size: 9 1/2 x 11 1/2. Price is for 100 peel and seal Envelopes, 28 Pound White Wove Stock. Top window: size 1 1/4 x 4 1/2, from left 15/16, from bottom 8 5/8.Brand | EGPChecks #ad |
Manufacturer | EGP #ad |
Weight | 4 Pounds |
Part Number | 80342PS |
Model | 80342PS |
More information #ad
8. Amazon Basics
#ad
White, Peel & Seal, Amazon Basics Catalog Mailing Envelopes, 100-Pack, 9x12 Inch
#adAmazon Basics #ad - Easy-to-seal peel and Seal closure—no moisture needed. 100-pack of no. 10-1/2 catalog envelopes. Ideal for mailing catalogs, brochures, booklets, and multi-page documents. Measures 9 by 12 inches each. Durable 28-pound white woven paper for quality and strength.More information #ad
Brand | Amazon Basics #ad |
Manufacturer | Amazon Basics #ad |
Height | 0.01 Inches |
Length | 12 Inches |
Width | 9 Inches |
Part Number | AMZP15 |
Model | AMZP15 |
More information #ad
9. Envelopes.com
#ad
Catalog, 9 x 12 Open-End Envelopes in 80 lb. Midnight Black for Mailing a Business Letter, Magazine, 50 Pack Black, Pamphlet, Financial Document
#adEnvelopes.com #ad - Classic color: if you want a high-quality envelope, these envelopes are thicker and more durable than printer paper and will protect whatever is inside. Printable & customizable: if you want to customize or label your envelopes with zero hassle, you’re in luck! These envelopes are printer friendly, so you can use your home laser or inkjet printer to address them.Use them to send business letters, and so much more. No matter what you decide to use these envelopes for, professional mailings, making them perfect for things like letters, personal mail, whatever is inside is sure to arrive in perfect condition.
More information #ad
No need to worry about smudging or jamming because these envelopes are made for compatibility with most printer models. Durable & reliable: made from heavyweight lux paper stock with a sturdy construction, these envelopes are thick and durable, or catalogs. Open-end envelope: these open-end 9” x 12” catalog envelopes have a convenient vertical design. Text-weight paper stock, we offer these envelopes in a variety of other color options as well. Made from 80 lb. Peel & press seal: the self-seal design of these envelopes is perfect for anyone who doesn’t want to lick or use a moistener on every single envelope — it’s a huge time-saver! Simply peel off the protective strip, and seal. If this shade of black isn’t right for you, this is the item for you.
Brand | Envelopes.com #ad |
Manufacturer | Envelopes.com #ad |
Height | 1.3 Inches |
Length | 11.9 Inches |
Weight | 2.05 Pounds |
Width | 8.8 Inches |
Part Number | 80428-50 |
Model | 66065 |
More information #ad
10. Immuson
#ad
Bubble Envelopes Pack of 25, Immuson White 9.5 x 13.5 Inches Poly Bubble Mailers, Self-Seal Shipping Bags, Padded Shipping Envelopes, Packaging Bags
#adImmuson #ad - Multipurpose envelopes - these bubble mailers can be used in shops, pins, and so on; jewelry, medicines, homes, accessories, offices, Dvd, cosmetics, schools, video games, business cards, Festive Present etc. Light weight mailers - those padded mailers are lightweight mailing envelops, will not add to your shipping cost.You can count on our poly mailers to keep your packages safe until they reach their destination. And the shipping Bags used of opaque materials convenient for protect your privacy.
More information #ad
Fully opaque for confidentiality. Poly bubble mailers are a cost-effective and efficient way to ship all your packages. These shipping bags fit for any scene where transportation is required. Prevent damages and keep your customers happy! Dimension - size: 9. 5" x 13. 5" | pack of 25 | Color: White. These mailers are tear-resistant, puncture-resistant, and waterproof. Strong & durable construction - our poly mailers are crafted with only the finest materials. Simply peel and fold over to seal each package safely and securely. Perfect for business and retail use.
Brand | Immuson #ad |
Manufacturer | Immuson #ad |
Part Number | FBM.9.5x13.5 |
More information #ad