Top 10 Double Window Envelopes – Business Mailing Envelopes

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1. AmazonBasics

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Security Tinted, Double Window, 500-Pack, AmazonBasics #9 Envelopes with Peel & Seal

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AmazonBasics #ad - Interior security tint keeps content private; securely send checks, invoices, or other confidential documents. Measures 3-7/8 by 8-7/8 inches each. 24-pound white wove paper for quality and strength; ideal for home or office. 500-count pack of #9 security envelopes with Peel & Seal closure—no moisture needed. Double window allows sender and recipient addresses to show through.
BrandAmazonBasics #ad
ManufacturerAmazonBasics #ad
Height8.8 Inches
Length1 Inches
Weight5.96 Pounds
Width3.88 Inches
Part Numberamz43
ModelAMZ43

2. AmazonBasics

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White, 500 ct, AmazonBasics #9 Double Window Security Tinted Envelopes

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AmazonBasics #ad - Double windows 3/8-inch from the left to show sender info 2 inches from bottom and recipient info 1/2 inch from bottom. 500 standard-size security-tinted #9 double window envelopes. Ideal for 8. 5-by-11-inch computer-generated invoices and statements. 9 envelopes measures 3-7/8 by 8-7/8 inches each.
BrandAmazonBasics #ad
ManufacturerAmazonBasics #ad
Height0.01 Inches
Length8.88 Inches
Weight0.1 Pounds
Width9.25 Inches
Part NumberAMZ92W
ModelAMZ92W

3. Aimoh

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Checks Fit Perfectly, Not for Invoices, QuickBooks & Quicken Checks, 500 Count30180, 500#8 Double Window Self Seal Security Envelopes, Size 3 5/8 x 8 11/16 Inches, for Business Checks

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Aimoh #ad - Quick-seal self seal strip: aimoh’s double window Security Tinted Self Seal Check Envelopes uses a premium adhesive peel and seal designed strip to create a strong, secure self-sealing seal. Premium security tint check envelopes: Ultra Secure security tint pattern - Double Window Security Tinted Check Envelopes.

Perfect secure design: measures perfectly 3 5/8 inch x 8 11/16 inch to prevent checks from sliding and moving unlike others on the market, securing sensitive information to remain hidden even through the two windows. Five hundred count: each box contains a long lasting Five Hundred envelope supply, ideal for business and home office use.

Dual window custom designed for mailing business checks: top window height is 7/8 inch x 3-1/2 inches wide and is positioned 3/8 inch from the left and 2-3/8 inch from the bottom, Bottom Window height is 7/8 inch X 3-1/2 inch wide and is positioned 7/8 inches from the left and 3/4 inches from the bottom.
BrandAimoh #ad
ManufacturerAimoh #ad
Part Number30180

4. Aimoh

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500 Count 30139, 500#9 Double Window SELF Seal Security Envelopes, Size 3-7/8 x 8-7/8-24 LB, for Invoices, Statements & Documents, Security Tinted

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Aimoh #ad - Double windows; professional, advertising campaigns and many more, easily read double front windows suitable for standard business and legal mailings, eliminating constantly printing and hand writing addresses, each envelope contains two front windows, a 1-3/16" X 3-1/2" top window positioned 3/8" from the left and 2" from the bottom and the bottom 1" X 4" window is 3/8" from the left and 1/2" from the bottom.

Security tint; forget thin, easily read envelopes these premium #9 Security Envelopes are designed with security tinted wave patterns which easily obscure details, numbers and other data within, perfect for mailing business statements and invoices while protecting sensitive information. Long lasting supply; ideal for everyday business use and professional mass mailings, each box of these premium #9 Security Envelopes provide a super long lasting 500 envelope supply, for the best value on the market! Click the Orange Button to order now.

Quick seal adhesive; aimoh's #9 envelopes use ultra secure, quick seal adhesive to create a full, super secure seal across each envelope’s width that won’t easily open or tear as with cheaper gummed seals, perfect for larger and thicker documents.9 double window quick seal security envelopes; tired of cheap thin, easily torn envelopes? Aimoh's#9 Security Envelopes are the perfect solution, extra large, with premium security tint, easily read dual front windows and super secure quick seal adhesive.
BrandAimoh #ad
ManufacturerAimoh #ad
Height4.1 Inches
Length11.5 Inches
Width9.2 Inches
Part NumberFBA_30139
Model30139

5. Office Deed

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Office Deed 500#10 Self Seal Double Window Security Envelopes-Designed for Business Statements, Quickbooks Invoices, and Return Envelopes 4 1/8 X 9 ½’’

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Office Deed #ad - The blue tint pattern makes impossible to see the details of the contents, even when held up to the light. Mail invoices, statements and other important documents with confidence. Peel & seal closure: with the peel & seal closure, envelopes do not require licking to seal.

Quality: our security self seal envelopes made of 24-lb white wove. They come in boxes of 500, multiple business statements, so you can stock up for long-term use.  . 500 envelopes in each box: our #10 4 1/8" x 9 1/2'' envelopes ideal for invoices, return envelopes, any document from official business letters. Wove finish adds a professional touch.

The liner keeps the gum dust-free before use. Simply press flaps together for a secure, strong seal.  . Double window: #10 double window envelopes ideal for Quickbooks invoice, Business Statements, Return Documents Secure Mailing. Privacy: protect confidential client information with our security tinted envelopes. Our products will the perfect fit for all official purpose with high standard quality.
BrandOffice Deed #ad
ManufacturerOffice Deed #ad
Part NumberSSESDW10
ModelSSESDW10

6. ACSTEP

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White Envelopes 500 Count, Acko #10 500Pack Double Window Envelopes Quick-Seal Closure Envelopes 4 1/8 x 9 1/2,Security Tint Pattern Designed for Home Office Secure Mailing,Letters and Invoices

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ACSTEP #ad - You can use business mailing envelopes for sending invoices and checks. It 's perfect choice for small businesses, home offices and everyday use, #10 Security Envelopes are provided in a 500-envelope pack. If you need to send statements, this security envelopes window fit for you!Buy with confidence!Click the Orange Button to order now! Ideal for mass mailing of business documents.

Double window envelopeit's easily read dual windows for everyday business mailings and postal addresses. Best security envelopes #10 double window envelope size 4 1/8 x 9 1/2 designed for home office secure mailing, letters and Invoices, computer business checks perfectly. Standard packagethe envelopes are 500pcs per box, checks and invoices everyday, packaged by a solid carton box, which can protect the item intact during the delivery. Premium security tinted pattern #10 envelopes are designed with a premium security printed design to protect contents and sensitive information, as well as your customer's.

Privacy and confidentiality are critical for all business and legal transactions, so this security envelopes are meet your standards. Dual windows placed in an ideal location for checks. Security tinted design and strong self-seal quick-seal for the best security envelopes on the market. Quick-seal closurestrong self-seal adhesive strip to create a full, super secure seal across each envelope's width that won't easily open or tear, ideal for mailing larger documents without splitting.
BrandACSTEP #ad
ManufacturerAcko #ad
Part NumberAcko - 00065
ModelBrown Cheque size envelop

7. HERKKA

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24 LB, Number 9 Size 3 7/8 Inch X 8 7/8 Inch, 500 Count, #9 Double Window Security Envelopes, HERKKA No.9 Double Window Bussiness Envelopes Designed for Quickbooks Invoices and Business Statements

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HERKKA #ad - Perfectly fits QuickBooks Invoices and business billing statements. Perfect for home or office; securely send checks or other confidential documents. Quick-seal closure: our #9 envelopes are designed with an ultra strong SELF-SEAL adhesive strip to create a full, super secure seal across each envelope's width that won't easily open or tear, ideal for mailing for any letter sized and larger documents without splitting.

Premium security check tint envelopes: the interior of our #9 Security envelopes use a dark navy, offer the protection contents and sensitive information, heavy coverage security tint to provide guaranteed privacy for your legal or business mail, a security tint makes envelopes hard to see through that ensures upmost privacy.5500 pack self seal envelopes:herkka #9 security envelopes are designed with peel & seal closure—no moisture needed and a premium security tint to protect sensitive information and a super strong SELF-SEAL strip.

Double window design: only sender and return address will show on your QuickBooks invoices and monthly bills through our unique 2 window. Long lasting supply: large sized envelopes and 500 envelopes in every pack for a long lasting supply, perfect for everyday business correspondence and large mailing tasks! Click the Orange Button to order now. No show of memo, Payee line or amount in windows.
BrandHERKKA #ad
ManufacturerHERKKA #ad
Part NumberNo9-2Win-Lixing

8. Quality Park

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3-5/8 x 8-5/8. 500 per Box 24539, Quality Park #8-5/8 Double Window Security Tinted Check Envelopes with a Self Seal Closure, 24 lb White Wove

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Quality Park #ad - Mail checks, statements and other important documents with confidence. Redi-seal self adhesive closure: with the redi-seal closure, envelopes do not require moisture to seal. The 1" x 4" bottom window is positioned 5/8" from the left and 5/8" from the bottom.

Convenient double window: display the sender and receiver addresses through the double window openings. Compatible with most standard 3-1/2" x 8-1/2" checks for payroll and accounts payable applications, this double window envelope not only saves time but also makes sure the check is delivered straight into the customer's hands!The 7/8" x 3-1/2" top window is positioned 5/8" from the left and 2-1/4" from the bottom. The unique double-flap design keeps the gum from sticking before use.

500 envelopes in each box: ideal for both everyday office use and bulk mailings, each box of Quality Park #8-5/8 Double Window Security Tinted Check Envelopes provides a long lasting supply! Enhanced privacy features: protect sensitive client information with these security tinted envelopes. Simply raise the lower flap and press to seal. The reflex blue pattern lining the envelope's interior makes it impossible to see the details of the contents, even when held up to the light.
BrandQuality Park #ad
Manufacturer0 #ad
Height3.63 Inches
Length13 Inches
Weight0.01 Pounds
Width8.88 Inches
Part Number24539
Model24539

9. Blue Summit Supplies

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500 Gummed Double Window Security Check Envelopes, Gummed Flap, Computer Printed Checks, Designed for QuickBooks Checks, 3 5/8 X 8 11/16

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Blue Summit Supplies #ad - Just moisten or lick the flap and fold it over to create a strong lasting seal: Save money with our strong gummed seal design is quick and easy and is guaranteed to stay sealed NOT SELF SEAL.

Perfectly fits quickbooks checks, or other computer printed checks: checks will slide in easier with a slightly wider design than the standard 2 window 8 5/8 envelope. Checks amounts and memos will not be visible: only addresses will show through our unique double window design with no need to change QuickBooks, QB Online, or Quicken settings WILL NOT FIT STATEMENTS. Maintains professional look and feel throughout transit with our durable 24 LB white wove envelope paper. Provides complete check security: your laser checks will be hidden with our security tint design.
BrandBlue Summit Supplies #ad
ManufacturerBlue Summit Supplies #ad
Height4.5 Inches
Length8.5 Inches
Weight5.11 Pounds
Width12 Inches
Part NumberBSS-92588-005

10. Blue Summit Supplies

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500 No. 9 Flip and Seal Double Window Security Envelopes, Designed for Quickbooks Invoices and Business Statements with Self Seal Flip Press and Seal Flap -Number 9 Size 3 7/8 Inch X 8 7/8 Inch

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Blue Summit Supplies #ad - Quickly and easily stuff our wide envelopes with several invoices or business statements. Save time with easy to use flip and seal self-seal design; With no need for licking or moistening, our self seal design allows for sending hundreds of invoices quickly and easily and is guaranteed to stay sealed with no need for tape or glue sticks.

Maintains professional look and feel throughout transit with our durable 24 LB white wove envelope paper. Perfectly fits quickbooks invoices and business statements: sender and return address will be visible on your QuickBooks invoices and monthly bills through our unique double window design. Provides complete business mail security: your invoices and statements will be completely hidden with our dark security tint design.
BrandBlue Summit Supplies #ad
ManufacturerBlue Summit Supplies #ad
Weight5.27 Pounds
Part NumberBSS-92588-007