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Strong adhesive: with the strong adhesive flap, valbox #8 double window envelopes will be more evident if tampered. The checks are easy to slip in.
Great self seal envelopes. Fits quickbooks checks and other computer printed checks perfectly. Notice: these #8 double window Envelopes Are Not Compatible With QuickBooks Invoices. No need to worry about opening them easily by others. Our valbox double window envelopes feature with durable 24lbs white wove paper, peel-off strip, stronger glue and security tint design. Protect your check privacy and safety.

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.

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

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.


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.

This self-sealing closure will keep your envelope sealed securely. Handy double window ensures that the addresses of sender and receiver are visible, but nothing else! The amount of your check or any other information will be hidden from view.
An outstanding product down to the packaging! our envelopes are packed in a top-quality hard box, which will not tear during handling. Store your envelopes in these sturdy boxes until you’ve used them all up. Keep checks secure with our long lasting, durable flip-and-seal flap. White wove paper. Our special wider design than the typical 8 5/8 inch envelope makes it quicker and easier to slide checks in.

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.
Quick seal adhesive: no glue sticks required. Premium quality: these security check envelopes are made with thick 24lb. Your accounting housekeeping just got a whole lot easier. Double windows, these business envelopes fit checks perfectly, great quickbooks check envelope: Designed specifically for QuickBook users, with dual windows displaying essential information without leaking out sensitive details.

Provides complete check security: your laser 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. 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.

These boxes of 500 white #8 5/8 double window security envelopes 3 5/8 in x 8 5/8 in protect your customers' sensitive data; a reflex blue pattern obscures the details of what's inside.
1. 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 - The windows line up perfectly with return and sender address, without showing the memo or check amount line like other envelopes. Premium quality. Security check envelopes. Double windows design. 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 #8 double window envelopes will be more evident if tampered. The checks are easy to slip in.
More information #ad
No show of memo, Payee line or amount in windows. Fits peachtree checks as well as Quicken and QuickBooks. The self-seal feature makes these envelopes much more convenient than regular, moisten-and-seal ones. Great self seal envelopes. Fits quickbooks checks and other computer printed checks perfectly. Notice: these #8 double window Envelopes Are Not Compatible With QuickBooks Invoices. No need to worry about opening them easily by others. Our valbox double window envelopes feature with durable 24lbs white wove paper, peel-off strip, stronger glue and security tint design. Protect your check privacy and safety.
Brand | ValBox #ad |
Manufacturer | ValBox #ad |
Part Number | VB008 |
Model | VB008 |
More information #ad
2. Blue Summit Supplies
#ad
Designed for Quickbooks Printed Checks, 500 No. 8 Flip and Seal Double Window Security Check Envelopes, Number 8 Size 3 5/8 Inch x 8 11/16 Inch
#adBlue Summit Supplies #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.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.
More information #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. 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.Brand | Blue Summit Supplies #ad |
Manufacturer | Blue Summit Supplies #ad |
Weight | 1 Pounds |
Part Number | BSS-92588-012 |
More information #ad
3. Aimoh
#ad
Not for Invoices, 500#8 Double Window Self Seal Security Envelopes, Checks Fit Perfectly, for Business Checks, QuickBooks & Quicken Checks, 500 Count30180, Size 3 5/8 x 8 11/16 Inches
#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
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. Five hundred count: each box contains a long lasting Five Hundred envelope supply, ideal for business and home office use. 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 |
More information #ad
4. Blue Summit Supplies
#ad
Designed for QuickBooks Checks, Computer Printed Checks, 500 Self Seal Double Window Security Envelopes, 3 5/8 X 8 11/16 NOT for INVOICES
#adBlue 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.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
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. 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 | FBA_BSS-92588-001 |
Model | FBA_BSS-92588-001 |
More information #ad
5. Prime Business Checks
#ad
500 Self Seal QuickBooks Double Window Security Check Envelopes, for Business Laser Checks, Ultra Security Tinted, Self Adhesive Peel & Seal White, Size 3 5/8 x 8 11/16-24lb NOT for INVOICES
#adPrime Business Checks #ad - Peel & seal flap: no water required. Premium 24 lb - color: white - Finish: Smooth/Wove. Designed to fit Computer business checks, QuickBooks checks.More information #ad
Peel strip and fold flap, then press for a quick, secure seal. Envelope is ideal for all business, professional and personal correspondence. Self seal double Window, Security tinted for added privacy and confidentiality.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
6. Quality Park
#ad
500/Box QUA50766, Redi-Strip Self Seal Closure, 24 lb White, Quality Park #8 Double Window Security Envelopes for QuickBooks Checks, 3 5/8 x 8 11/16
#adQuality Park #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.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.
More information #ad
Double window envelopes display just the sender & receiver addresses; precise measurements keep check amounts and memo lines out of view. Quality park #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.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
7. Next Day Labels
#ad
Measures 3-5/8 inch x 8-11/16 inches, Double Window Security Check Envelope, Flip and Seal, Box of 500 Number 8 Envelopes, Size fits QuickBooks Printed Checks
#adNext Day Labels #ad - Additional safety is provided with our security tint design, which keeps check amounts and memos concealed. Get the perfect fit with our pack of 500 #8 envelopes designed to fit checks printed on QuickBooks, Quicken, QuickBooks online, and other computer software.This self-sealing closure will keep your envelope sealed securely. Handy double window ensures that the addresses of sender and receiver are visible, but nothing else! The amount of your check or any other information will be hidden from view.
More information #ad
The boxes will last as long as you need them. Demonstrate your professionalism with our excellent quality envelopes, made of 24 lb. The envelopes are designed strictly for checks, not for invoices or other documents. An outstanding product down to the packaging! our envelopes are packed in a top-quality hard box, which will not tear during handling. Store your envelopes in these sturdy boxes until you’ve used them all up. Keep checks secure with our long lasting, durable flip-and-seal flap. White wove paper. Our special wider design than the typical 8 5/8 inch envelope makes it quicker and easier to slide checks in.
Brand | Next Day Labels #ad |
Manufacturer | Next Day Labels #ad |
Part Number | NDL-8dw |
More information #ad
8. Ohuhu
#ad
White Envelope, Business Check, 3 5/8" x 8 11/16", Ohuhu 500 Pack # 8 Double Window Envelope SELF SEAL Adhesive Tinted Security Envelopes Quickbooks Check, Documents Secure Mailing
#adOhuhu #ad - With a easy peel-off strip that reveals a strong, permanent adhesive that won't rip or tear even through long haul journeys. Best value: each box comes with 500 double window self seal security check envelopes envelopes, which fit standard-sized checks perfectly.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.
More information #ad
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. Quick seal adhesive: no glue sticks required. Premium quality: these security check envelopes are made with thick 24lb. Your accounting housekeeping just got a whole lot easier. Double windows, these business envelopes fit checks perfectly, great quickbooks check envelope: Designed specifically for QuickBook users, 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. Blue Summit Supplies
#ad
Designed for QuickBooks Checks, Computer Printed Checks, Gummed Flap, 500 Gummed Double Window Security Check Envelopes, 3 5/8 X 8 11/16
#adBlue Summit Supplies #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.Provides complete check security: your laser 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. 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
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.Brand | Blue Summit Supplies #ad |
Manufacturer | Blue Summit Supplies #ad |
Height | 4.5 Inches |
Length | 8.5 Inches |
Weight | 5.11 Pounds |
Width | 12 Inches |
Part Number | BSS-92588-005 |
More information #ad
10. Quality Park
#ad
Double Window, Invoices/QuickBooks Statements, Quality Park #8 5/8 Security Envelopes, Self Seal, 3-5/8" x 8-5/8", 24 lb White, 500/Box QUA24539
#adQuality Park #ad - Redi-seal self seal mailing envelopes require no moisture; the unique double flap design allows you to simply raise the lower flap and press to seal. Stock up on boxes of 500 machinable #8 5/8 envelopes for bulk mailings.These boxes of 500 white #8 5/8 double window security envelopes 3 5/8 in x 8 5/8 in protect your customers' sensitive data; a reflex blue pattern obscures the details of what's inside.
More information #ad
8 5/8 mailing envelopes measure 3 5/8 in height x 8 5/8 in width and are made of 24 lb white wove paper with professional side seams; #8 5/8 envelopes fit into #10 envelopes. Double window envelopes show sender and receiver addresses; top window: 3 5/8" x 8 5/8"; 5/8" from the left; 2 1/4" from the bottom; bottom window: 1" x 4", 5/8" from the left; 2 1/4" from the bottom.Brand | Quality Park #ad |
Manufacturer | 0 #ad |
Height | 3.88 Inches |
Length | 13.13 Inches |
Weight | 5.26 Pounds |
Width | 9.13 Inches |
Part Number | 24539 |
Model | 24539 |
More information #ad