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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.



Perfectly fits quickbooks checks, or other computer printed checks: checks will slide in easier with a slightly wider design than a standard 8 5/8 envelope.


Our valbox double window envelopes feature with durable 24lbs white wove paper, peel-off strip, stronger glue and security tint design. Notice: these #8 double window envelopes are not compatible with quickbooks INVOICES.
The windows line up perfectly with return and sender address, without showing the memo or check amount line like other envelopes. The self-seal feature makes these envelopes much more convenient than regular, moisten-and-seal ones. Premium quality. You don't need to stand licking envelopes and using glue or the water activators, which is time consuming and messy. Fits peachtree checks as well as Quicken and QuickBooks. Protect your check privacy.

Five hundred count: each box contains a long lasting Five Hundred envelope supply, ideal for business and home office use.
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.

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. Our security envelopes will quickly and easily create a strong seal for completely secure business mail.

You can even stuff smaller #9 or #8 return envelopes to get your invoices paid quicker. Just peel and seal for a strong lasting seal. Perfect for mailing invoices, billing statements, QuickBooks Invoices, checks, and other business mail.
1. 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
#adBlue Summit Supplies #ad - Just peel and seal to create a strong lasting seal: Our self seal design is quick and easy and is guaranteed to stay sealed. Provides complete check security: your checks will be hidden with our security tint design.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.
More information #ad
Maintains professional look and feel throughout transit with our durable 24 LB white wove envelope paper. 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.Brand | Blue Summit Supplies #ad |
Manufacturer | Blue Summit Supplies #ad |
Weight | 1 Pounds |
Part Number | FBA_BSS-92588-001 |
Model | FBA_BSS-92588-001 |
More information #ad
2. Next Day Labels
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100 Double Window SELF Seal Security Check Envelopes, Compatible with QuickBooks and Other Checks
#adNext Day Labels #ad - Peel and Seal. Peel strip and fold flap, then press for a quick, secure seal. Dimensions: 3-5/8 X 8-3/4. Security Tint Inside. Guaranteed to fit all your computer business checks. No water required.More information #ad
Brand | Next Day Labels #ad |
Manufacturer | Next Day Labels #ad |
Height | 2.4 Inches |
Length | 8.9 Inches |
Weight | 1.2 Pounds |
Width | 4.1 Inches |
Part Number | NDLSS95022 |
Model | NDLSS95022 |
More information #ad
3. EnDoc
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For Computer Checks-Compatible for QuickBooks 3-5/8 X 8-11/6, 100 Self Seal Double Window Security Tinted Envelopes
#adEnDoc #ad - Perfect size for most computer business checks. Self seal double window security tinted envelopes. White double window envelope with a 24 lb paper stock.More information #ad
Envelope size 3-5/8 X 8-11/6. 2 windows left side upper 3 1/2 window 3/8 from top 3/8 from left lower 3 1/2 window 7/8 from left 2 from top 3/4 inch from bottom.Brand | EnDoc #ad |
Manufacturer | CheckOMatic.com #ad |
Height | 3 Inches |
Length | 9.5 Inches |
Width | 4 Inches |
Part Number | 845458 |
Model | 845458 |
More information #ad
4. Blue Summit Supplies
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500 No. 8 Flip and Seal Double Window Security Check Envelopes, Designed for Quickbooks Printed Checks, Number 8 Size 3 5/8 Inch x 8 11/16 Inch
#adBlue Summit Supplies #ad - Provides complete check security: your checks will be hidden with our security tint design. Just flip flap and seal to create a strong lasting seal: Our self seal design is quick and easy and is guaranteed to stay sealed.Perfectly fits quickbooks checks, or other computer printed checks: checks will slide in easier with a slightly wider design than a standard 8 5/8 envelope.
More information #ad
Checks amounts and memos will not be visible: Only addresses will show through our unique double window design with no need to change QuickBooks settings. Maintains professional look and feel throughout transit with our durable 24 LB white wove envelope paper.Brand | Blue Summit Supplies #ad |
Manufacturer | Blue Summit Supplies #ad |
Weight | 1 Pounds |
Part Number | BSS-92588-012 |
More information #ad
5. Next Day Labels
#ad
Sage 100 program, #9 Ready-Seal Double Window Security Tinted Check Envelopes, Blackbaud Software ETC, Box of 500, Compatible for QuickBooks Checks
#adNext Day Labels #ad - Guaranteed to fit all your computer business checks. Box of 500 #9 double window check Envelope, 3-7/8 X 8-7/8. Fold and seal - Security Tint Inside. Stop licking envelopes" Just fold the flap, get a quick, secure seal. Made in the usa by Next Day Labels TM.More information #ad
Brand | Next Day Labels #ad |
Manufacturer | Next Day Labels #ad |
Weight | 0.01 Pounds |
Part Number | NDL Check Envelopes |
Model | 92664 |
More information #ad
6. ValBox
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ValBox 200 Count #8 Double Window Envelopes 3 5/8" x 8 11/16" Flip and Seal Double Window Security Check Envelopes- Security Tint Pattern Designed for Home Office Secure Mailing
#adValBox #ad - The checks are easy to slip in. Security check envelopes. Great self seal envelopes. No show of memo, Payee line or amount in windows. No need to worry about opening them easily by others. Strong adhesive: with the strong adhesive flap, valbox #8 double window envelopes will be more evident if tampered.Our valbox double window envelopes feature with durable 24lbs white wove paper, peel-off strip, stronger glue and security tint design. Notice: these #8 double window envelopes are not compatible with quickbooks INVOICES.
More information #ad
Double windows design. If there's anything make you unhappy or unsatisfied about the products, please do contact us without any hesitation. Fits quickbooks checks and other computer printed checks perfectly. The windows line up perfectly with return and sender address, without showing the memo or check amount line like other envelopes. The self-seal feature makes these envelopes much more convenient than regular, moisten-and-seal ones. Premium quality. You don't need to stand licking envelopes and using glue or the water activators, which is time consuming and messy. Fits peachtree checks as well as Quicken and QuickBooks. Protect your check privacy.
Brand | ValBox #ad |
Manufacturer | ValBox #ad |
Part Number | VB023 |
Model | VB023 |
More information #ad
7. Aimoh
#ad
500#8 Double Window Self Seal Security Envelopes, for Business Checks, 500 Count30180, QuickBooks & Quicken Checks, Size 3 5/8 x 8 11/16 Inches, Not for Invoices, Checks Fit Perfectly
#adAimoh #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.Five hundred count: each box contains a long lasting Five Hundred envelope supply, ideal for business and home office use.
More information #ad
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. 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.
Brand | Aimoh #ad |
Manufacturer | Aimoh #ad |
Part Number | 30180 |
More information #ad
8. Blue Summit Supplies
#ad
Computer Printed Checks with Strong Peel and Seal Flap, 500 No. 10 Self Seal Single Window Security Envelopes -Designed for QuickBooks Invoices and Business Statements, Number 10 Size 4 1/8 X 9 1/2
#adBlue Summit Supplies #ad - Provides complete business mail security: your professional business mail will be completely hidden with our dark security tint design. Create professional looking mail with the added security of a single window envelope.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. Our security envelopes will quickly and easily create a strong seal for completely secure business mail.
More information #ad
You can even stuff smaller #9 or #8 return envelopes to get your invoices paid quicker. Your business mail recipient address will show through the single window and you can quickly print your return address or add return address labels. Perfect for mailing invoices, billing statements, QuickBooks Invoices and checks, checks, and other business mail.Brand | Blue Summit Supplies #ad |
Manufacturer | Blue Summit Supplies #ad |
Part Number | BSS-92588-004 |
Model | BSS-92588-004 |
More information #ad
9. Blue Summit Supplies
#ad
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, Quickbooks Invoices, and Return Envelopes
#adBlue Summit Supplies #ad - Your return and sender address will line up perfectly. 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.You can even stuff smaller #9 or #8 return envelopes to get your invoices paid quicker. Just peel and seal for a strong lasting seal. Perfect for mailing invoices, billing statements, QuickBooks Invoices, checks, and other business mail.
More information #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. Provides complete business mail security: your business mail will be completely hidden with our dark security tint design.Brand | Blue Summit Supplies #ad |
Manufacturer | Blue Summit Supplies #ad |
Height | 4.4 Inches |
Length | 11.9 Inches |
Weight | 6.25 Pounds |
Width | 10.1 Inches |
Part Number | BSS-92588-003 |
Model | 74689 |
More information #ad