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Just peel and seal to create a strong lasting seal: Our self seal design is quick and easy and is guaranteed to stay sealed.

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.

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.

8 double window envelopes are a perfect fit for QuickBooks & other computer checks; with security tint for privacy & a Redi Strip self seal closure for fast easy mail days; 500 per box. Double window envelopes display just the sender & receiver addresses; precise measurements keep check amounts and memo lines out of view.

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. 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 double window design with no need to change QuickBooks, QB Online, or Quicken settings WILL NOT FIT STATEMENTS.

Security check envelopes. Notice: these #8 double window Envelopes Are Not Compatible With QuickBooks Invoices. Double windows design.
Great self seal envelopes. Protect your check privacy. No show of memo, Payee line or amount in windows. You don't need to stand licking envelopes and using glue or the water activators, which is time consuming and messy. The checks are easy to slip in. The self-seal feature makes these envelopes much more convenient than regular, moisten-and-seal ones.

Premium quality: these security check envelopes are made with thick 24lb. Paper, a super adhesive seal and a high-quality security pattern to ensure contents are kept in tip-top condition, with absolutely no security compromises.
With a easy peel-off strip that reveals a strong, permanent adhesive that won't rip or tear even through long haul journeys. Double windows, great quickbooks check enveLOPE: Designed specifically for QuickBook users, these business envelopes fit checks perfectly, with dual windows displaying essential information without leaking out sensitive details.

Notice: these #8 double window envelopes are not compatible with quickbooks INVOICES. Ideal for quickbooks Check, Documents Secure Mailing. No show of memo, business check, payee line or amount in windows. Easy seal closure: our #8 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.
Premium security check tint envelopes: the interior of our #8 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. Double window design: only addresses will show through our unique 2 window.

No need to worry about opening them easily by others. You don't need to stand licking envelopes and using glue or the water activators, which is time consuming and messy.
The checks are easy to slip in. If there's anything make you unhappy or unsatisfied about the products, please do contact us without any hesitation. Premium quality. Strong adhesive: with the strong adhesive flap, valbox #8 double window envelopes will be more evident if tampered. Protect your check privacy. Fits quickbooks checks and other computer printed checks perfectly. No show of memo, Payee line or amount in windows.
1. Blue Summit Supplies
#ad
500 Self Seal Double Window Security Envelopes Designed for QuickBooks Checks, 3 5/8 X 8 11/16 Not for Invoices, Computer Printed Checks
#adBlue Summit Supplies #ad - Provides complete check security: your checks will be hidden with our security tint design. 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.
More information #ad
Maintains professional look and feel throughout transit with our durable 24 LB white wove envelope paper. 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.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. Aimoh
#ad
Checks Fit Perfectly, Not for Invoices, 500 Count30180, for Business Checks, Size 3 5/8 x 8 11/16 Inches, QuickBooks & Quicken Checks, 500#8 Double Window Self Seal Security Envelopes
#adAimoh #ad - 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.More information #ad
Five hundred count: each box contains a long lasting Five Hundred envelope supply, ideal for business and home office use. 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.
Brand | Aimoh #ad |
Manufacturer | Aimoh #ad |
Part Number | 30180 |
Model | AE-BCSQS-30180-500 |
More information #ad
3. Prime Business Checks
#ad
Ultra Security Tinted, Self Adhesive Peel & Seal White, Size 3 5/8 x 8 11/16-24lb NOT for INVOICES, 500 Self Seal QuickBooks Double Window Security Check Envelopes, for Business Laser Checks
#adPrime Business Checks #ad - 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.
More information #ad
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. 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. Premium security: envelopes are made with thick 24 LB.Brand | Prime Business Checks #ad |
Manufacturer | Prime Business Checks #ad |
Height | 12 Inches |
Length | 8.69 Inches |
Weight | 4.8 Pounds |
Width | 3.62 Inches |
Part Number | PB-92663-500 |
Model | PB-92663-500 |
More information #ad
4. Quality Park
#ad
Redi-Strip Self Seal Closure, 24 lb White, 3 5/8 x 8 11/16, 500/Box QUA50766, Quality Park #8 Double Window Security Envelopes for QuickBooks Checks
#adQuality Park #ad - Redi-strip peel and seal envelopes let you fly through your mail routine in record time; just peel & press for a durable adhesive seal without applying moisture. Quality park no.8 double window envelopes are a perfect fit for QuickBooks & other computer checks; with security tint for privacy & a Redi Strip self seal closure for fast easy mail days; 500 per box. Double window envelopes display just the sender & receiver addresses; precise measurements keep check amounts and memo lines out of view.
More information #ad
A security tint makes envelopes hard to see through; a security pattern scrambles the appearance of text; keeps contents safe from prying eyes, even if held to light. Our no 8 mailing envelopes are a little bit wider and roomier than your standard check envelope; 3 5/8 x 8 11/16 inches wide to more easily fit wider QuickBooks checks & other computer laser checks.Brand | Quality Park #ad |
Manufacturer | TOPS Products #ad |
Height | 3.75 Inches |
Length | 12.13 Inches |
Width | 9.13 Inches |
Part Number | QUA50766 |
Model | QUA50766 |
More information #ad
5. Blue Summit Supplies
#ad
Designed for Quickbooks Printed Checks, Number 8 Size 3 5/8 Inch x 8 11/16 Inch, 500 No. 8 Flip and Seal Double Window Security Check Envelopes
#adBlue Summit Supplies #ad - 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.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. Provides complete check security: your checks will be hidden with our security tint design.
More information #ad
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. 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
6. Blue Summit Supplies
#ad
Gummed Flap, Computer Printed Checks, 500 #8 Gummed Double Window Security Check Envelopes, 3 5/8 X 8 11/16, Designed for QuickBooks Checks
#adBlue Summit Supplies #ad - Just moisten or lick the flap and fold it over to create a strong lasting seal: Save money with our strong gummed seal design is quick and easy and is guaranteed to stay sealed NOT SELF SEAL.Checks amounts and memos will not be visible: only addresses will show through our unique double window design with no need to change QuickBooks, QB Online, or Quicken settings WILL NOT FIT STATEMENTS.
More information #ad
Perfectly fits quickbooks checks, or other computer printed checks: checks will slide in easier with a slightly wider design than the standard 2 window 8 5/8 envelope. Maintains professional look and feel throughout transit with our durable 24 LB white wove envelope paper. Provides complete check security: your laser checks will be hidden with our security tint design.Brand | Blue Summit Supplies #ad |
Manufacturer | Blue Summit Supplies #ad |
Height | 4.5 Inches |
Length | 8.5 Inches |
Weight | 0 Pounds |
Width | 12 Inches |
Part Number | BSS-92588-005 |
More information #ad
7. ValBox
#ad
ValBox 500 Count #8 Double Window Envelopes 3 5/8" x 8 11/16" Self Seal Double Window Security Check Envelopes- Security Tint Pattern Designed for Home Office Secure Mailing
#adValBox #ad - Premium quality. Fits peachtree checks as well as Quicken and QuickBooks. Our valbox double window envelopes feature with durable 24lbs white wove paper, peel-off strip, stronger glue and security tint design. If there's anything make you unhappy or unsatisfied about the products, please do contact us without any hesitation.Security check envelopes. Notice: these #8 double window Envelopes Are Not Compatible With QuickBooks Invoices. Double windows design.
More information #ad
Strong adhesive: with the strong adhesive flap, valbox #8 double window envelopes will be more evident if tampered. 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. Great self seal envelopes. Protect your check privacy. No show of memo, Payee line or amount in windows. You don't need to stand licking envelopes and using glue or the water activators, which is time consuming and messy. The checks are easy to slip in. The self-seal feature makes these envelopes much more convenient than regular, moisten-and-seal ones.
Brand | ValBox #ad |
Manufacturer | ValBox #ad |
Weight | 5.93 Pounds |
Part Number | VB008 |
Model | VB008 |
More information #ad
8. Ohuhu
#ad
Ohuhu 500 Pack # 8 Double Window Envelope SELF SEAL Adhesive Tinted Security Envelopes Quickbooks Check, Business Check, 3 5/8" x 8 11/16", White Envelope, Documents Secure Mailing
#adOhuhu #ad - Best value: each box comes with 500 double window self seal security check envelopes envelopes, which fit standard-sized checks perfectly. Quick seal adhesive: no glue sticks required. Your accounting housekeeping just got a whole lot easier.Premium quality: these security check envelopes are made with thick 24lb. Paper, a super adhesive seal and a high-quality security pattern to ensure contents are kept in tip-top condition, with absolutely no security compromises.
More information #ad
Security tinted envelopes: these business check envelopes feature high quality security patterns with heavy paper stock to protect confidential information, for absolute peace of mind when mailing sensitive information. With a easy peel-off strip that reveals a strong, permanent adhesive that won't rip or tear even through long haul journeys. Double windows, great quickbooks check enveLOPE: Designed specifically for QuickBook users, these business envelopes fit checks perfectly, with dual windows displaying essential information without leaking out sensitive details.
Brand | Ohuhu #ad |
Manufacturer | Ohuhu #ad |
Height | 3.9 Inches |
Length | 10.8 Inches |
Width | 9.3 Inches |
Part Number | Y44-82000-01-new |
Model | # 8 |
Warranty | Ohuhu |
More information #ad
9. HERKKA
#ad
Computer Printed Checks, 24 LB, No.8 Double Window Bussiness Envelopes Designed for QuickBooks Checks, 500 Count, #8 Double Window Security Check Envelopes, 3 5/8 X 8 11/16 NOT for INVOICES
#adHERKKA #ad - 500 pack self seal bussiness envelopes:herkka #8 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.Notice: these #8 double window envelopes are not compatible with quickbooks INVOICES. Ideal for quickbooks Check, Documents Secure Mailing. No show of memo, business check, payee line or amount in windows. Easy seal closure: our #8 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.
More information #ad
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. Premium security check tint envelopes: the interior of our #8 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. Double window design: only addresses will show through our unique 2 window.
Brand | HERKKA #ad |
Manufacturer | HERKKA #ad |
Part Number | No8-2Win-Lixing |
More information #ad
10. ValBox
#ad
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 - Great self seal envelopes. Security check envelopes. The self-seal feature makes these envelopes much more convenient than regular, moisten-and-seal ones. The windows line up perfectly with return and sender address, without showing the memo or check amount line like other envelopes.No need to worry about opening them easily by others. You don't need to stand licking envelopes and using glue or the water activators, which is time consuming and messy.
More information #ad
Double windows design. Notice: these #8 double window envelopes are not compatible with quickbooks INVOICES. Our valbox double window envelopes feature with durable 24lbs white wove paper, peel-off strip, stronger glue and security tint design. The checks are easy to slip in. If there's anything make you unhappy or unsatisfied about the products, please do contact us without any hesitation. Premium quality. Strong adhesive: with the strong adhesive flap, valbox #8 double window envelopes will be more evident if tampered. Protect your check privacy. Fits quickbooks checks and other computer printed checks perfectly. No show of memo, Payee line or amount in windows.
Brand | ValBox #ad |
Manufacturer | ValBox #ad |
Part Number | VB023 |
Model | VB023 |
More information #ad