Top 10 Invoice Envelopes for QuickBooks – Business Mailing Envelopes

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1. Blue Summit Supplies

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500 No. 9 Double Window Security Envelopes, 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

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Blue Summit Supplies #ad - 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.

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. Our self seal design is quick and easy and is guaranteed to stay sealed with no need for tape or glue sticks. 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
ModelBSS-92588-002

2. Blue Summit Supplies

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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, 500 No. 9 Flip and Seal Double Window Security Envelopes

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Blue Summit Supplies #ad - 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.

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. 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
ModelBSS-92588-007

3. HERKKA

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

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HERKKA #ad - Perfectly fits QuickBooks Invoices and business billing statements. Premium security check tint envelopes: the interior of our #9 Security envelopes use a dark navy, heavy coverage security tint to provide guaranteed privacy for your legal or business mail, offer the protection contents and sensitive information, a security tint makes envelopes hard to see through that ensures upmost privacy.

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. Double window design: only sender and return address will show on your QuickBooks invoices and monthly bills through our unique 2 window. 500 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.

Perfect for home or office; securely send checks or other confidential documents. No show of memo, Payee line or amount in windows. 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.
BrandHERKKA #ad
Part NumberNo9-2Win-Lixing

4. Blue Summit Supplies

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And Return Envelopes -Number 10 Size 4 1/8 X 9 ½ Inch, Quickbooks Invoices, 500 No. 10 Flip and Seal Double Window Security Envelopes, Perfect Size for Multiple Business Statements

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Blue Summit Supplies #ad - No need to spend time and money stamping, or spending extra money on custom envelopes, adding return labels, just quickly slide in your business mail to create professional looking business mail.

You can even stuff smaller #9 or #8 return envelopes to get your invoices paid quicker. 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. Save time quickly stuffing multiple pieces of business mail in our wide and large #10 Security Envelope Design.

Provides complete business mail security: your invoices and statements will be completely hidden with our dark security tint design. Perfect for mailing invoices, checks, billing statements, QuickBooks Invoices, and other business mail. Your return and sender address will line up perfectly.
BrandBlue Summit Supplies #ad
ManufacturerBlue Summit Supplies #ad
Weight0.01 Pounds
Part NumberBSS-92588-008

5. Prime Business Checks

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Size 3 5/8 x 8 11/16-24lb NOT for INVOICES, Ultra Security Tinted, 500 Self Seal QuickBooks Double Window Security Check Envelopes, for Business Laser Checks, Self Adhesive Peel & Seal White

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Prime Business Checks #ad - Premium security: envelopes are made with thick 24 LB. Perfect secure design: measures perfectly 3 5/8 inch x 8 11/16 inch to prevent checks from sliding and moving, Address will show perfect through windows, Checks amounts and memos will not be visible.

Peal and seal flap: just peel and seal to create a strong lasting seal, Our self seal design is quick and easy and is guaranteed to stay sealed throughout transit. Five hundred count: each box contains a long lasting Five Hundred envelope supply, ideal for business and home office use. White wove paper, a super adhesive seal and a high-quality security pattern to ensure contents are kept in utmost security. Check envelopes: designed to fit quickbooks Laser Checks or any Computer Business Checks, these business envelopes fit checks perfectly, with dual windows displaying essential information without leaking out sensitive details.
BrandPrime Business Checks #ad
ManufacturerPrime Business Checks #ad
Height12 Inches
Length8.69 Inches
Weight4.8 Pounds
Width3.62 Inches
Part NumberPB-92663-500
ModelPB-92663-500

6. Blue Summit Supplies

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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

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Blue Summit Supplies #ad - Just peel and seal for a strong lasting seal. Provides complete business mail security: your professional business mail will be completely hidden with our dark security tint design.

Our security envelopes will quickly and easily create a strong seal for completely secure business mail. Create professional looking mail with the added security of a single window envelope. Perfect for mailing invoices, QuickBooks Invoices and checks, billing statements, checks, and other 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. You can even stuff smaller #9 or #8 return envelopes to get your invoices paid quicker. Save time quickly stuffing multiple pieces of business mail in our wide and large #10 Security Envelope Design.
BrandBlue Summit Supplies #ad
ManufacturerBlue Summit Supplies #ad
Part NumberBSS-92588-004
ModelBSS-92588-004

7. ValBox

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ValBox 500 Count #9 Self Seal Security Envelopes 3-7/8x8-7/8" Double Window Envelopes for QuickBooks Invoices, Business Statements and Legal Documents

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ValBox #ad - Security invoice envelopes: forget the thin, try our valbox #9 double window security envelopes, torn easily and see-through envelopes you used in the past, which fit QuickBooks invoices and business billing statements perfectly!!! The contents are also easy to slip in.

No need to worry about opening them easily by others. Double windows design: the windows line up perfectly with return and sender address, eliminating the need for hand addressing or printing mailing labels, advertising campaigns and more. You don't need to stand licking envelopes and using glue or the water activators, which is time consuming and messy. Strong adhesive: with the strong adhesive flap, valbox #9 double window envelopes will be more evident if tampered. The self-seal feature makes these envelopes with windows much more convenient than regular, moisten-and-seal ones.

Premium quality: these #9 double window envelopes feature with durable 24lbs white wove paper, peel-off strip, stronger glue and security tint design. Protect your invoice and statement privacy. The detail position for the double windows, ideal for legal and standard business mailings, please refer the size chart on the second photos. Great self seal envelopes. If there's anything make you unhappy or unsatisfied about the products, please do contact us without any hesitation.
BrandValBox #ad
ManufacturerValBox #ad
Part NumberVB051

8. ValBox

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Business Statements and Legal Documents, ValBox 500 Count #10 Double Window Envelopes 4-1/8x9-1/2" Self Seal Security Envelopes for QuickBooks Invoices

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ValBox #ad - If there's anything make you unhappy or unsatisfied about the products, please do contact us without any hesitation. Notice: this #10 double window envelope is not for QuickBooks Checks!!! Great self seal envelopes. The detail position for the double windows, eliminating the need for hand addressing or printing mailing labels, ideal for legal and standard business mailings, please refer the size chart on the second photos.

Strong adhesive: with the strong adhesive flap, valbox #10 double window envelopes will be more evident if tampered. You don't need to stand licking envelopes and using glue or the water activators, which is time consuming and messy. Security invoice envelopes: forget the thin, torn easily and see-through envelopes you used in the past, try our ValBox #10 security envelopes, which fit QuickBooks invoices, multiple business billing statements and return envelopes perfectly!!! The contents are also easy to slip in.

The self-seal feature makes these envelopes with windows much more convenient than regular, moisten-and-seal ones. Premium quality: these #10 double window envelope features with durable 24lbs white wove paper, peel-off strip, stronger glue and security tint design. Protect your invoice and statement privacy. Double windows design: the windows line up perfectly with return and sender address, return documents and more. No need to worry about opening them easily by others.
BrandValBox #ad
ManufacturerValBox #ad
Part NumberVB052

9. Blue Summit Supplies

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Quickbooks Invoices, and Return Envelopes, Number 10 Size 4 1/8 Inch X 9 ½ Inch, 500 No. 10 Self Seal Double Window Security Envelopes, Perfect Size for Multiple Business Statements

#ad
Blue Summit Supplies #ad - No need to spend time and money stamping, adding return labels, or spending extra money on custom envelopes, just quickly slide in your business mail to create professional looking business mail.

Perfect for mailing invoices, QuickBooks Invoices, checks, billing statements, and other business mail. Provides complete business mail security: your business mail will be completely hidden with our dark security tint design. Your return and sender address will line up perfectly. You can even stuff smaller #9 or #8 return envelopes to get your invoices paid quicker. Our security envelopes will quickly and easily create a strong seal for completely secure business mail. Save time quickly stuffing multiple pieces of business mail in our wide and large #10 Security Envelope Design. Just peel and seal for a strong lasting seal.
BrandBlue Summit Supplies #ad
ManufacturerBlue Summit Supplies #ad
Height4.4 Inches
Length11.9 Inches
Weight6.25 Pounds
Width10.1 Inches
Part NumberBSS-92588-003
Model74689

10. HERKKA

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500#10 Single Left Window SELF Seal Security Envelopes, Designed for QuickBooks Invoices & Business Statements, 24 LB, Computer Printed Checks Peel and Seal Flap Number 10 Size 4-1/8 x 9-1/2 Inches

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HERKKA #ad - Easy read single window: thin security of single window envelopes makes the contents easily to read, create a professional looking,  perfect for displaying recipient addresses or business information on the single window. 10 single window security envelopes: our #10 security envelopes are designed with SELF-SEAL strip—no moisture needed and a premium security tint, invoices, perfect for secure business and legal mailing, to protect sensitive data and information, or other confidential documents.

Ultra strong easy seal: #10 envelopes are manufactured with ultra selF-SEAL adhesive strip to create a full, ideal for mailing larger documents without splitting, super secure seal across each envelope's width that won't easily open or tear, is guaranteed to stay sealed with no need for tape or glue sticks. Click the Orange Button to order now. Long lasting supply:  each box has 500 envelopes which can meet a long lasting supply, ideal for mass mailing of everyday business tasks! Our envelopes with smooth thick paper, it’s fully compatible with most ink jet and laser printers, can print quick and easily without worry about paper jams .

Premium security tinted pattern: #10 security envelopes are designed with a premium security printed design to provide guaranteed privacy for your legal or business mail, offer the protection contents and sensitive information, a security tint makes envelopes hard to see through that ensures upmost privacy.
BrandHERKKA #ad
ManufacturerHERKKA #ad
Part NumberNo10-1Win-Lixing