Top 10 Window Envelopes SELF SEAL – Business Mailing Envelopes

As an Amazon Associate I earn from qualifying purchases.

1. Amazon Basics

#ad

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

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

2. Aimoh

#ad

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

#ad
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. 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.

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

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

3. Blue Summit Supplies

#ad

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

#ad
Blue Summit Supplies #ad - Quickly and easily stuff our wide envelopes with several invoices or business statements. Provides complete business mail security: your invoices and statements will be completely hidden with our dark security tint design.

Maintains professional look and feel throughout transit with our durable 24 LB white wove envelope paper. 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. 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.
BrandBlue Summit Supplies #ad
ManufacturerBlue Summit Supplies #ad
Weight5.27 Pounds
Part NumberBSS-92588-007

4. Blue Summit Supplies

#ad

500 No. 10 Self Seal Single Window Security Envelopes -Designed for QuickBooks Invoices and Business Statements, Computer Printed Checks with Strong Peel and Seal Flap, Number 10 Size 4 1/8 X 9 1/2

#ad
Blue Summit Supplies #ad - Create professional looking mail with the added security of a single window envelope. Provides complete business mail security: your professional business mail will be completely hidden with our dark security tint design.

Just peel and seal for a strong lasting seal. Save time quickly stuffing multiple pieces of business mail in our wide and large #10 Security Envelope Design. You can even stuff smaller #9 or #8 return envelopes to get your invoices paid quicker. Perfect for mailing invoices, QuickBooks Invoices and checks, checks, billing statements, and other business mail. Our security envelopes will quickly and easily create a strong seal for completely secure business mail. Your business mail recipient address will show through the single window and you can quickly print your return address or add return address labels.
BrandBlue Summit Supplies #ad
ManufacturerBlue Summit Supplies #ad
Weight0.01 Pounds
Part NumberBSS-92588-004

5. Amazon Basics

#ad

500-Pack, Amazon Basics #10 Security-Tinted Envelopes with Peel & Seal, Left Window, White

#ad
Amazon Basics #ad - Interior security tint keeps content private; single window allows address to show through. Ideal for home or office; securely send checks, invoices, or other confidential documents. 500-pack of #10 security envelopes with Peel & Seal closure—no moisture needed. 24-pound white woven paper for quality and strength. Measures 4-1/8 by 9-1/2 inches each.
BrandAmazon Basics #ad
ManufacturerAmazon Basics #ad
Part NumberAMZA26
ModelAMZA26

6. Aimoh

#ad

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

#ad
Aimoh #ad - 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. Double windows; professional, easily read double front windows suitable for standard business and legal mailings, advertising campaigns and many more, 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.9

9 double window quick seal security envelopes; tired of cheap thin, with premium security tint, extra large, easily torn envelopes? Aimoh's#9 Security Envelopes are the perfect solution, easily read dual front windows and super secure quick seal adhesive. 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.
BrandAimoh #ad
ManufacturerAimoh #ad
Height4.1 Inches
Length11.5 Inches
Weight0.01 Pounds
Width9.2 Inches
Part NumberFBA_30139
Model30139

7. Aimoh

#ad

Security Tinted, Size 4-1/8 x 9-1/2 Inches, 500#10 Single Left Window SELF Seal Security Envelopes, Super Strong Quick-Seal Self Sealing Closure, 24 LB, 500 Count 35210

#ad
Aimoh #ad - Easy read single window; perfect for bulk mailing, easy read 4-1/2 x 1-1/8 poly-window, positioned 7/8" from the left and 1/2" from the bottom of the envelope, perfect for displaying addresses or business information, extra large, each envelope has a premium, making slow printing and hand addressing a thing of the past.

Security tint pattern; mailing secure documents? our #10 security Envelopes are designed with a security wave pattern on the inside to protect contents, data and numbers from being easily read, unlike other cheap envelopes. Ultra strong quick seal; manufactured with ultra strong, creating a super strong seal across the width of the envelope for a strong seal that won’t easily tear, quick seal adhesive, perfect for mailing larger, thicker documents. Long lasting supply; ideal for everyday business use, perfect for invoices, each measuring 4-1/8 x 9-1/2 inches, each box provides 500 envelopes for a long lasting supply, statements and many more business uses! Click the Orange Button to order now.

10 single window security envelopes; forget cheap, thin envelopes that allow contents to be easily read, our #10 security envelopes are premium quality, ultra secure envelopes suitable for everyday business and legal mailing while protecting sensitive contents and information.
BrandAimoh #ad
Part NumberFBA_35210
ModelFBA_35210

8. Blue Summit Supplies

#ad

500 Self Seal Double Window Security Envelopes, Designed for QuickBooks Checks, Computer Printed Checks, 3 5/8 X 8 11/16 NOT for INVOICES

#ad
Blue Summit Supplies #ad - Perfectly fits quickbooks laser checks, or other computer printed checks: checks will slide in easier with a slightly wider design than the standard two window 8 5/8 envelope.

Just peel and seal to create a strong lasting seal: Our self seal design is quick and easy and is guaranteed to stay sealed. Checks amounts and memos will not be visible: Only addresses will show through our unique 2 window design with no need to change QuickBooks, QB Online, or Quicken settings. Provides complete check security: your checks will be hidden with our security tint design. Maintains professional look and feel throughout transit with our durable 24 LB white wove envelope paper.
BrandBlue Summit Supplies #ad
ManufacturerBlue Summit Supplies #ad
Weight1 Pounds
Part NumberFBA_BSS-92588-001
ModelFBA_BSS-92588-001

9. Office Deed

#ad

4-1/8 x 9-1/2 Inches, Office Deed 500#10 Envelopes SELF SEAL Business Envelope Single Window Design, Security Tint Pattern for Secure Mailing, Invoices, Statements & Legal Document

#ad
Office Deed #ad - Privacy: protect confidential client information with our security tinted envelopes. Single window:single window envelopes for easy printing, labeling or perfect for quick, mass business mailings.

500 envelopes in each box: our #10 4 1/8" x 9 1/2" envelopes ideal for any document from official business letters to business check. Our products will the perfect fit for all official purpose with high standard quality. Quality: our security self seal envelopes made of 24-lb white wove. Wove finish adds a professional touch. Peel & seal closure: with the peel & seal closure, envelopes do not require licking to seal.

Mail invoices, statements and other important documents with confidence. They come in boxes of 500, so you can stock up for long-term use.  . The blue tint pattern makes impossible to see the details of the contents, even when held up to the light. The liner keeps the gum dust-free before use. Simply press flaps together for a secure, strong seal.  .
BrandOffice Deed #ad
ManufacturerOffice Deed #ad
Weight5.73 Pounds
Part NumberSSESW

10. Quality Park

#ad

For Business Statements, Invoices, 4-1/8" x 9-1/2", 500 Per Box QUA24559, White, 24-lb, Quality Park #10 Double-Window Self-Seal Security Envelopes

#ad
Quality Park #ad - Haste, not waste: redi-seal envelopes don’t require moisture, seal instantly & won't close and stick before you're ready—that means you won't find ruined samples in the box.

Formatted for business: double-windows display the sender & receiver addresses; fits invoices & statements from QuickBooks and other standard business software; laser and inkjet printer compatible. Save with self-stick: quality park #10 double-window security envelopes have a fold-away, self-sealing flap that saves you time & money. An excellent value: get 500 white wove 4-1/8 inch x 9-1/2 inch #10 envelopes per box at a stock-up price. Enhanced security: offer the protection clients deserve & protect yourself from liability; a security tint makes envelopes hard to see through; a security pattern scrambles the appearance of text.
BrandQuality Park #ad
ManufacturerQuality Park #ad
Height4.13 Inches
Length14 Inches
Weight6.5 Pounds
Width9.63 Inches
Part Number24559
Model24559