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9 Envelopes Double Window

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The Best 9 Envelopes Double Window of 2023 – Reviewed and Top Rated

2,983 Reviews Scanned

SaleRank No. #1
Amazon Basics #9 Self-Seal Envelopes with Peel and Seal, Double Window, Security Tinted, 500-Pack, 1 X 3.88 X 8.8 inch, White
  • 500-count pack of #9 security envelopes with Peel & Seal closure―no moisture needed
  • Interior security tint keeps content private; securely send checks, invoices, or other confidential documents
  • 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
Rank No. #2
Columbian #9 Security Envelopes, 500/Box, Double Window, 3-7/8" x 8-7/8", Release & Seal Self Seal, SimplySafe Tamper Evident, White (COLO183)
  • Get a jumbo box of 500 Columbian self seal double window #9 envelopes (3-7/8" x 8-7/8") each with a security tinted interior and easy peel off Release and Seal closure
  • These self seal envelopes have a Release and Seal peel strip; peel off the paper strip and press down for a permanent seal; it's simple, clean, and sanitary with no moisture required
  • Security envelopes have a strong security tint pattern so you can't see what's inside; ideal for obscuring more sensitive information and protecting critical documents
  • Side seam mailing envelopes allow for a smooth, fold-free back panel for printing graphics, logos, and more; durable 24 lb white wove paper provides a professional look
  • Stock up on these envelope 500 packs so you always have some on hand; a great buy for small businesses, offices, and schools
Rank No. #3
Aimoh 500#9 Double Window SELF Seal Security Envelopes - for Invoices, Statements & Documents, Security Tinted - Size 3-7/8 x 8-7/8-24 LB - 500 Count (30139)
  • #9 DOUBLE WINDOW QUICK SEAL SECURITY ENVELOPES; tired of cheap thin, easily torn envelopes? Aimoh's#9 Security Envelopes are the perfect solution, with premium security tint, extra large, easily read dual front windows and super secure quick seal adhesive
  • 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
  • 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
  • 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
  • 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!
Rank No. #4
#9 Double Window Security Envelopes, HERKKA No.9 Double Window Business Envelopes Designed for Quickbooks Invoices and Business Statements - Number 9 Size 3 7/8 Inch X 8 7/8 Inch - 24 LB - 500 Pack
  • 500 PACK SELF SEAL ENVELOPES: HERKKA No9 Security envelopes are designed with Peel and Seal closure-no moisture needed and a premium security tint to protect sensitive information and a super strong SELF-SEAL strip. Suitable for home or office; securely send checks or other confidential documents.
  • PREMIUM SECURITY CHECK TINT ENVELOPES: The interior of our No9 Security envelopes use a dark navy, heavy coverage security tint to provide the protection contents and sensitive information, a security tint makes envelopes hard to see through that ensures upmost privacy.
  • DOUBLE WINDOW DESIGN: Only sender and return address will show on your QuickBooks invoices and monthly bills through our unique 2 window . No show of memo, Payee line or amount in windows. Suitable for QuickBooks Invoices and business billing statements.
  • QUICK-SEAL CLOSURE: Our No9 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.
  • LONG LASTING SUPPLY: Large sized envelopes and 500 envelopes in every pack for a long lasting supply, suitable for everyday business correspondence and large mailing tasks! Click the Orange Button to order now.
Rank No. #5
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
  • 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.
  • 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
  • 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

Last update on 2025-07-07 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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FAQ:

Q: Why are double window envelopes good for business?

A: Ideal for business mailings, these #9 double-window white envelopes work well for 8.5-by-11-inch statements and invoices. The envelopes provide an interior security tint that prevents documents from being read through the envelope, even when held up to the light.

Q: What are the different types of business envelopes?

A: Window envelopes are very useful for business correspondence. They come in several sizes and with several window designs that make them both more secure and easier to ship. The most common are number 9 and number 10 envelopes, and either a single-window or double-window design. Window envelopes are very useful for business correspondence.

Q: How big is the double window on Amazon?

A: Double windows 3/8-inch from the left to show sender info (2 inches from bottom) and recipient info (1/2 inch from bottom) To see our price, add these items to your cart. Choose items to buy together. In Stock. FREE Shipping on orders over $25.00. In Stock. FREE Shipping on orders over $25.00. In Stock.

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