Top 10 Business Envelopes Security Self Seal – Catalog Mailing Envelopes

As an Amazon Associate I earn from qualifying purchases.

1. Quality Park

#ad

100/Box QUA69117, 4-1/8" x 9-1/2", Quality Park #10 Self-Seal Security Envelopes, Security Tint and Pattern, Redi-Strip Closure, 24-lb White Wove

#ad
Quality Park #ad - An excellent value: bright white 24-lb paper makes an impression for business mailings and personal correspondence; get 100 4-1/8 x 9-1/2 inch envelopes.

Save time with self-stick: quality park #10 Security Envelopes have a strong peel & stick closure that helps you fly through mailings in record time. Enhanced security: offer the protection clients deserve; a security tint makes envelopes hard to see through; a security pattern scrambles the appearance of text. Store more, longer: reid-strip envelopes have a longer shelf-life thanks to the peel able strip that protects your adhesive from dust. Less yuck: we promise you won't miss licking envelopes or crumbly, drippy sponges; complete your mailings, no accessories required.
BrandQuality Park #ad
ManufacturerQuality Park #ad
Height2.03 Inches
Length9.63 Inches
Weight0.91 Pounds
Width4.25 Inches
Part NumberQUA69117
ModelQUA69117

2. Splendoress

#ad

500 Self Seal Security Mailing Envelopes, #10 White Letter Businesses Envelopes -500 Peel and Seal Tinted Windowless # 10 Envelope, Printer Friendly, Self Stick Bulk Envelops

#ad
Splendoress #ad - Self seal envelope- just peel and stick 4 1/8 in. X 9 1/2 in size envelop. Can't see through envelopes - Security printing pattern on the inside prevents from seeing what inside. High quality & bulk pricing - 24lbs high quality envelopes at a fraction of the price. No need to lick the flap anymore - Very convenient. Long lasting supply - 500 count per box. Windowless envelope.
BrandSplendoress #ad
ManufacturerSplendoress #ad
Height0.01 Inches
Length9.5 Inches
Weight6.06 Pounds
Width4.12 Inches
Part Number#10 Security Envelopes Windowless
Model#10 Security Envelopes Windowless

3. Aimoh

#ad

For Business Checks, 500 Count30180, Size 3 5/8 x 8 11/16 Inches, Not for Invoices, QuickBooks & Quicken Checks, 500#8 Double Window Self Seal Security Envelopes, Checks Fit Perfectly

#ad
Aimoh #ad - 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.

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. 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.

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.
BrandAimoh #ad
ManufacturerAimoh #ad
Part Number30180

4. Prime Business Checks

#ad

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

#ad
Prime Business Checks #ad - Envelope is ideal for all business, professional and personal correspondence. Peel strip and fold flap, then press for a quick, secure seal. Peel & seal flap: no water required. Premium 24 lb - color: white - Finish: Smooth/Wove. Self seal double Window, Security tinted for added privacy and confidentiality. Designed to fit Computer business checks, QuickBooks checks.
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

5. ValBox

#ad

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

#ad
ValBox #ad - 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. Double windows design: the windows line up perfectly with return and sender address, eliminating the need for hand addressing or printing mailing labels, ideal for legal and standard business mailings, return documents and more. Great self seal envelopes. We are confident you would love our valBox invoice envelopes in its quality and price. The detail position for the double windows, please refer the size chart on the second photos.

You don't need to stand licking envelopes and using glue or the water activators, which is time consuming and messy. However, if there's anything make you unhappy or unsatisfied, please do contact us without any hesitation. Notice: this #10 double window envelope is not for QuickBooks Checks!!! 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 and safety.
BrandValBox #ad
ManufacturerValBox #ad
Part NumberVB052

6. Splendoress

#ad

Mailing Envelopes Self Seal, Printer Friendly, Self Stick Bulk Envelops, #10 Security White Letter Businesses Envelopes -100 Peel and Seal Tinted Windowless # 10 Envelope

#ad
Splendoress #ad - Tinted security pattern - Windowless envelope with a secure, security tint-pattern to protect contents and sensitive information. No need to lick the flap anymore - SELF-SEAL adhesive strip creates a super secure seal across each envelope. Laser and inkjet printer compatible - Measuring 4-1/8 x 9-1/2 inches, fully compatible with most inkjet and laser printers for easy addressing. 100 envelope windowless pack - Perfect choice for small businesses, home offices and everyday use. High quality & bulk pricing - 24lbs high quality envelopes at a fraction of the price.
BrandSplendoress #ad
Height2.2 Inches
Length9.5 Inches
Width4.12 Inches
Part NumberMailing Envelopes - 100 Envelopes

7. Blue Summit Supplies

#ad

Blue Summit Supplies 500 Number 10 Envelopes Self Seal, Number 10 Business Envelopes Letter Size, 4 1/8 x 9 1/2-500 Count, Security Tint, Flip and Seal Flap

#ad
Blue Summit Supplies #ad - Provides complete mail security with no need to worry about others seeing your documents, thanks to our dark black security tint lining which completely hides your confidential mail. Designed for secure everyday home and business mailings, our windowless number 10 security envelopes are a perfect fit for standard 8.

5'' x 11'' paper sizes and other folded letter or legal size documents. Create a professional look for your mail all the way to its destination thanks to our durable 24 white wove paper and smooth front envelope with no windows. Quickly stuff multiple pieces of business mail into our wide opening #10 security envelope design with large flip-and-seal opening.

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. Smaller #9 or #8 return envelopes will easily fit inside so you can get your invoices paid quicker.
BrandBlue Summit Supplies #ad
ManufacturerBlue Summit Supplies #ad
Part NumberBSS-92588-033

8. Quality Park

#ad

For Business Statements, 4-1/8" x 9-1/2", Invoices, 24-lb, Quality Park #10 Double-Window Self-Seal Security Envelopes, 500 Per Box QUA24559, White

#ad
Quality Park #ad - Save with self-stick: quality park #10 double-window security envelopes have a fold-away, self-sealing flap that saves you time & money. Formatted for business: double-windows display the sender & receiver addresses; fits invoices & statements from QuickBooks and other standard business software; laser and inkjet printer compatible.

Enhanced security: offer the protection clients deserve & protect yourself from liability; a security tint makes envelopes hard to see through; a security pattern scrambles the appearance of text. An excellent value: get 500 white wove 4-1/8 inch x 9-1/2 inch #10 envelopes per box at a stock-up price. Haste, not waste: redi-seal envelopes don’t require moisture, seal instantly & won't close and stick before you're ready—that means you won't find ruined samples in the box.
BrandQuality Park #ad
ManufacturerQuality Park #ad
Height4.13 Inches
Length14 Inches
Weight6.5 Pounds
Width9.63 Inches
Part Number24559
Model24559

9. Blue Summit Supplies

#ad

Computer Printed Checks with Strong Peel and Seal Flap, Number 10 Size 4 1/8 X 9 1/2, 500 No. 10 Self Seal Single Window Security Envelopes -Designed for QuickBooks Invoices and Business Statements

#ad
Blue Summit Supplies #ad - Save time quickly stuffing multiple pieces of business mail in our wide and large #10 Security Envelope Design. Your business mail recipient address will show through the single window and you can quickly print your return address or add return address labels.

Create professional looking mail with the added security of a single window envelope. Provides complete business mail security: your professional business mail will be completely hidden with our dark security tint 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. Perfect for mailing invoices, checks, QuickBooks Invoices and checks, billing statements, and other business mail.
BrandBlue Summit Supplies #ad
ManufacturerBlue Summit Supplies #ad
Part NumberBSS-92588-004
ModelBSS-92588-004

10. Spark Ink

#ad

Blank White Envelopes, No Window, Quality 24 lb paper, Envelopes Self Seal, Standard Size Business Envelopes 4-1/8 x 9-1/2 Inch, 500 count, Security Envelopes #10

#ad
Spark Ink #ad - Perfect for check printing: windowless blank design allows for easy address printing or labels for mass mailing or to simply keep a bulk supply on hand for your home office. Crafted with thick, 24lb paper that ensures upmost privacy.

Heavyweight security envelopes: we specifically designed these envelopes with a dark navy, heavy coverage security tint to provide guaranteed privacy for your legal or business mail. Never get fooled again: these envelopes Tear When Opened! Exclusive tamper evident slits provide increased security to prevent careful opening and resealing. Our envelopes are manufactured from well managed forests and are fully recyclable. Maximum strength self seal: unlike other envelopes that need extra tape or glue, Spark Ink spares no expense on thick, peel and seal adhesive that really sticks. Environmentally friendly: rest easy when you send a letter.
BrandSpark Ink #ad
ManufacturerSpark Ink #ad
Part Number#10 Security Envelopes - Tamper Evident