Top 10 Reveal and Seal Window Envelopes – Business Mailing Envelopes

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1. Quality Park

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Quality Park #9 Double Window Security Tinted Invoice and Statement Envelope with Reveal-N-Seal Self Seal Closure, 24 lb White Wove, 3-7/8 x 8-7/8. 500 per Box 67529

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Quality Park #ad - Enhanced privacy features: protect sensitive client information with these security tinted envelopes. Simply pull the bottom flap up, fold the top flap down and press to seal. Positioned to fit most invoice address layouts, this double window envelope not only saves time but also makes sure the document is delivered straight into the customer's hands! The 1-3/16" x 3-1/2" top window is positioned 3/8" from the left and 2" from the bottom.

Convenient double window: display the sender and receiver addresses through the double window openings. 500 envelopes in each box: ideal for both everyday office use and bulk mailings, each box of Quality Park #9 Double Window Security Tinted Invoice and Statement Envelopes provides a long lasting supply! The 1" x 4" bottom window is positioned 3/8" from the left and 1/2" from the bottom.

Reveal-n-seal self seal closure: the best overall self-sealing envelope in the industry! It's patented seal design allows for an aggressive quick 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. A built-in security feature along the top of the flap shows indications of tampering. Mail invoices, statements and other important documents with confidence.
BrandQuality Park #ad
ManufacturerQuality Park #ad
Height9 Inches
Length12 Inches
Weight5.8 Pounds
Width3.88 Inches
Part Number67529
Model67529

2. Quality Park

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500 / Box, Quality Park, White, Reveal-n-Seal Double Window Envelopes, QUA67539

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Quality Park #ad - Self-sealing, tamper-evident closure: Reveal-N-Seal envelopes have perforations along the flap to show evidence of tampering. Formatted for business: double-windows display sender & receiver addresses for QuickBooks checks and other payroll and accounts payable applications.

Value packed: boxes of 500 24 lb white wove envelopes let you stock up for monthly payroll and accounts payable mailings. Dependable patented design: Unique flap folds up and into place for an aggressive seal that won't close prematurely. Enhanced privacy: security tint with complex pattern makes numbers and text difficult to read, even when held to light.
BrandQuality Park #ad
ManufacturerQuality Park Products #ad
Height3.63 Inches
Length13.8 Inches
Weight5.2 Pounds
Width9 Inches
Part Number67539
Model67539

3. Quality Park

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67418, 500 per Box, Quality Park Window Security Envelope, White, Reveal-N-Seal, 4.125 x 9.5

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Quality Park #ad - Features: 500 white, 4. 125 x 9. 5 window Security Envelopes. Enhanced shelf life: Six times longer shelf life than standard latex adhesive envelopes. Security tinted: Be at ease knowing your contents will remain secure and private. Secure seal: a unique and aggressive adhesive provides a strong, moisture-free secure seal. Tamper-proof: small perforations along the flaps provide better evidence of tampering.
BrandQuality Park #ad
ManufacturerQuality Park #ad
Height9.81 Inches
Length14.18 Inches
Weight1 Pounds
Width4.12 Inches
Part Number67418
Model67418

4. STAPLES

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Staples 1775860 Reveal-N-Seal Security Tinted Dbl Window #8 5/8 Envelopes White 500/Bx

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STAPLES #ad - Sold as 500/Box. Convenient box of 500 envelopes ensures ample supply. White color is ideal for business or personal correspondence. Reveal-n-seal closure with wallet flap seals securely without moistening. 8-5/8 business envelopes are suitable for all your mailing needs. These envelopes measure 3 5/8"H x 8 5/8"L in size, providing enough space for your mail. Security-tinted pattern helps to discourage reading sensitive information through the outside of the envelope. The flap is on the long side for easier filling.
BrandSTAPLES #ad
ManufacturerStaples #ad
Part Number28732-CC

5. Quality Park

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

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Quality Park #ad - Convenient double window: display the sender and receiver addresses through the double window openings. 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. Redi-seal self adhesive closure: with the redi-seal closure, envelopes do not require moisture to seal.

Simply raise the lower flap and press to seal. Mail checks, statements and other important documents with confidence. The 1" x 4" bottom window is positioned 5/8" from the left and 5/8" from the bottom. 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.
BrandQuality Park #ad
Manufacturer0 #ad
Height3.63 Inches
Length13 Inches
Weight5.26 Pounds
Width8.88 Inches
Part Number24539
Model24539

6. Aimoh

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

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Aimoh #ad - 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.

Premium security tint check envelopes: Ultra Secure security tint pattern - Double Window Security Tinted Check Envelopes. 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.

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.
BrandAimoh #ad
ManufacturerAimoh #ad
Part Number30180

7. Blue Summit Supplies

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

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Blue Summit Supplies #ad - Maintains professional look and feel throughout transit with our durable 24 LB white wove envelope paper. Provides complete business mail security: your invoices and statements will be completely hidden with our dark security tint design.

Our self seal design is quick and easy and is guaranteed to stay sealed with no need for tape or glue sticks. Perfectly fits quickbooks invoices and business billing statements: sender and return address will be visible on your QuickBooks invoices and monthly bills through our unique two window design. Just peel and seal to create a strong lasting seal without licking or moistening. Quickly and easily stuff our wide envelopes with several invoices or business statements.
BrandBlue Summit Supplies #ad
ManufacturerBlue Summit Supplies #ad
Height4.5 Inches
Length8.5 Inches
Width12 Inches
Part NumberBSS-92588-002

8. Office Elite

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24 LB NOT for INVOICES, Business Checks, 550 SELF Seal Double Window Security Envelopes, Designed for QuickBooks Checks, and Computer Checks, 3 5/8” x 8 11/16”, Security Tinted, Peel & Seal

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Office Elite #ad - Premium quality: our window envelopes feature thick 24 lb. Best value: each box comes with 550 quickbooks check envelopes, data, not the standard 500—50 bonus double window envelopes included with each order! Easy to use: a speed seal flap and ultra-strong adhesive make mailing easy—simply peel the strip away press the flap down for a permanent seal that won’t rip open or tear while in transit! Maximum protection: our high-quality security pattern and heavy paper stock protect your numbers, and correspondence—mail your checks and advertisements with confidence knowing that your sensitive information will remain private.



Paper, a superior adhesive seal, and a high-quality security pattern. Ideal for quickbooks: designed specifically for QuickBooks users and computer business checks—fits all QuickBooks and computer business checks perfectly; dual windows placed in an ideal location for checks, business mailings, and advertisements.
BrandOffice Elite #ad
ManufacturerVesta Home Supply #ad
Part NumberB-11A
ModelB-101A

9. ACSTEP

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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, White Envelopes 500 Count

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ACSTEP #ad - Standard packagethe envelopes are 500pcs per box, packaged by a solid carton box, which can protect the item intact during the delivery. 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.

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. Double window envelopeit's easily read dual windows for everyday business mailings and postal addresses. 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. 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.

Ideal for mass mailing of business documents. 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. If you need to send statements, checks and invoices everyday, this security envelopes window fit for you!Buy with confidence!Click the Orange Button to order now!
BrandACSTEP #ad
ManufacturerAcko #ad
Part NumberAcko - 00065
ModelBrown Cheque size envelop

10. Quality Park

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Self Seal, Double Window, 3-7/8 x 8-7/8 Inches, 500/Box QUA24529, Invoices/QuickBooks Statements, Quality Park #9 Security Envelopes, 24 lb White

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Quality Park #ad - These boxes of 500 white #9 double window security envelopes 3 7/8 in x 8 7/8 in protect your customers' sensitive data; a reflex blue pattern obscures the details of what's inside.

Redi-seal self seal mailing envelopes require no moisture; the unique double flap design allows you to simply raise the lower flap and press to seal. Stock up on boxes of 500 machinable #9 envelopes for bulk mailings. 9 mailing envelopes measure 3 7/8 in height x 8 7/8 in width and are made of 24 lb white wove paper with professional side seams; #9 envelopes fit into #10 envelopes. Double window envelopes show sender and receiver addresses; top window is 1 3/16" x 3 1/2"; 3/8" from the left; 2" from the bottom; bottom window is 1" x 4"; 3/8" from the left; 1/2" from the bottom.
BrandQuality Park #ad
ManufacturerQuality Park #ad
Height3.63 Inches
Length13.13 Inches
Weight0.01 Pounds
Width9.13 Inches
Part NumberQUA24529
ModelQUA24529