Top 10 Certified Mail Envelopes Letter Size #10 – Business Mailing Envelopes

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1. Mead

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White, 4-1/8" X 9-1/2", 45 Per Box 75026, Mead No.10 Envelopes, Security, Press-it Seal-it

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Mead #ad - White envelopes with self adhesive seal, Security lining for privacy. Size: 4 to 1/8 inches x 9 to 1/2 inches. Mead press it seal it number 10 security envelopes, 45 envelopes per box.
BrandMead #ad
ManufacturerACCO Brands #ad
Height4.3 Inches
Length9.7 Inches
Weight0.02 Pounds
Width1.5 Inches
Part Number75026
Model75026
Warrantykkk

2. Mead

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500 Pack, TRTAZ11A-102021-v1, Mead Security Envelopes Self Seal #10, 4 1/8 x 9.5'', Windowless Mailing Envelopes

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Mead #ad - With its thick and opaque material, these blank standard #10 envelopes keep contents completely hidden from outsiders. These self sealing envelopes are created by Mead, a brand known for premium paper products and stationery.

Great value for money - make sure you have a reliable and long-lasting supply of this office essential. The solid surface makes it easy to print labels and addresses. Made with the mead seal of quality - protect your mail without compromising quality. Large bulk box comes with 500 number 10 envelopes size measures 4 1/8 x 9. 5”. There's no need to lick, or tape, glue, These regular Mead envelopes peel and seal with secure adhesive.

Windowless design - best for legal and business mailing, these plain White letter envelopes are tinted without any see-through panels for privacy. Seal in seconds - these easy close self stick envelopes keep your mail secure and sealed conveniently. Secured envelopes - make it impossible for prying eyes to read your sensitive information.
BrandMead #ad
ManufacturerMead #ad
Height33.37 Inches
Length33.37 Inches
Width33.37 Inches
Part NumberAST 2
ModelTRTAZ11A-102021-v1

3. Aimoh

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24 LB, #10 Security Tinted Self-Seal Envelopes, EnveGuard, Size 4-1/8 X 9-1/2 Inches, 100 Count 34100, No Window, White

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Aimoh #ad - Quick-seal closure; our #10 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.

100 envelope pack; these envelopes are manufactured with a window-less front panel for the perfect choice for small businesses, home offices and everyday use, #10 Security Envelopes are provided in a 100-envelope pack. Super security tint pattern; #10 envelopes designed with a secure, security tint-pattern to protect contents and sensitive information, perfect for ultra-secure mailing. Laser and inkjet printer compatible; premium construction measuring 4-1/8 x 9-1/2 inches, fully compatible with most inkjet and laser printers for quick and easy addressing! Click the Orange Button to order now.

Enveguard technology; in today's world where our health, the team of engineers and developers at Aimoh have researched and developed the EnveGuard Technology and Approval systems, at Aimoh we approve only the highest quality products, privacy and security is so much threatened, produced from the best and safest material on earth.
BrandAimoh #ad
ManufacturerAimoh #ad
Height2.2 Inches
Length9.7 Inches
Width4.3 Inches
Part Number34100
Model34100

4. Quality Park

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

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Quality Park #ad - Store more, longer: redi-strip envelopes have a longer shelf-life thanks to the peelable 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.

Save time with self-stick: quality Park 10 Security Envelopes have a strong peel and stick closure that helps you fly through mailings in record time. 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. Enhanced security: offer the protection clients deserve; a security tint makes envelopes hard to see through; a security pattern scrambles the appearance of text.
BrandQuality Park #ad
ManufacturerQuality Park #ad
Height2.03 Inches
Length9.63 Inches
Weight0.91 Pounds
Width4.25 Inches
Part NumberQUA69117
ModelQUA69117

5. Splendoress

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

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Splendoress #ad - 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. 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. High quality & bulk pricing - 24lbs high quality envelopes at a fraction of the price. 100 envelope windowless pack - Perfect choice for small businesses, home offices and everyday use.
BrandSplendoress #ad
Height2.2 Inches
Length9.5 Inches
Width4.12 Inches
Part NumberMailing Envelopes - 100 Envelopes
ModelMailing Envelopes - 100 Envelopes

6. Aimoh

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EnveGuard, White, 24 LB, Windowless Design, Ultra Strong Quick-Seal Closure, 500 Count 34010, Premium Security Tint Pattern, #10 Security Self-Seal Envelopes, Size 4-1/8 x 9-1/2 Inches

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Aimoh #ad - 10 security tinted self seal envelopes; forget cheap envelopes that easily split and aren't suitable for secure mailing, our #10 envelopes are designed with a premium security tint to protect sensitive information and a super strong SELF-SEAL strip, perfect for larger documents.

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! Windowless design; envelopes ideal for standard business & legal documents and sensitive correspondence, labeling or hand-addressing, perfect for quick, manufactured with a windowless front panel for easy printing, mass business mailings. Quick-seal closure; our #10 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 larger documents without splitting.

Premium security tinted pattern; our #10 envelopes are designed with a premium security printed design to protect contents and sensitive information, perfect for secure business and legal mailing while protecting sensitive information.
BrandAimoh #ad
ManufacturerAimoh #ad
Height4.25 Inches
Length11.5 Inches
Width10 Inches
Part Number34010-500
Model34010-500

7. Splendoress

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

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Splendoress #ad - Long lasting supply - 500 count per box. High quality & bulk pricing - 24lbs high quality envelopes at a fraction of the price. X 9 1/2 in size envelop. Self seal envelope- just peel and stick 4 1/8 in. No need to lick the flap anymore - Very convenient. Can't see through envelopes - Security printing pattern on the inside prevents from seeing what inside. Windowless envelope.
BrandSplendoress #ad
ManufacturerSplendoress #ad
Height4.25 Inches
Length11.5 Inches
Weight6.06 Pounds
Width10 Inches
Part Number#10 Security Envelopes Windowless
Model#10 Security Envelopes Windowless

8. Aimoh

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Security Tinted, 9x12 inch 38100, Ultra Strong Quick-Seal, 28lb, 100 9 x 12 SELF Seal Security White Catalog Envelopes

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Aimoh #ad - Security tint pattern; ideal for secure business mailing and sensitive correspondence, each 9x12 envelope contains a super secure, security tint pattern to protect contents, information and data when mailing.

9x12 catalog envelopes; aimoh’s white 9x12 security envelopes combine a professional security tint pattern, large size for business documents and premium quality for the best 9x12 envelopes on the market. 100 9 x 12 catalog envelopes in every pack for a long lasting supply, easy bulk mailing and everyday business correspondence! White 28lb stock; perfect for everyday business use, super secure seal across each envelope's width that won't easily open or tear and use high quality, Aimoh’s 9x12 envelopes are designed with an ultra strong SELF-SEAL adhesive strip to create a full, white 28lb stock for a professional finish.

For 8. 5x11 documents; large 9x12 size and strong quick-seal closure security tinted envelopes, perfect for photos, catalogs, thicker, larger documents and other business mailings.
BrandAimoh #ad
ManufacturerAimoh #ad
Height2.5 Inches
Length9 Inches
Weight4.06 Pounds
Width12 Inches
Part NumberFBA_38100
ModelFBA_38100

9. ValBox

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9.25 x 11.75 Inches, ValBox 9x11.5 Self Seal Photo Document Mailers 25 Pack Stay Flat White Cardboard Envelopes

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ValBox #ad - No need worry about leaking privacy. Great material makes them super perfect to protect art prints, CDs, etc. Semi-glossy surface finish of valbox 9x11. 5 cardboard envelopes is semi-glossy, you can hand write an address with a pen or get labels to print on and stick to the these mailers.

Provides complete security upgraded adhesive on cardboard mailers creates a strong lasting seal and prevents your contents from falling out during transit. Tear strip design for photo mailer also helps you open its package without struggle. High quality materialmade of high quality material, our document mailer will assure contents arriving at their destination unbent and unharmed. Protect them carefully and shape them well.

9 x 11. 5 inches, documents, certificates, paper, photos, books, 25 packs Premium quality ValBox document mailers dimension is 9.25 x 11. 75 inches. Good job in saving your precious time. Peel & sealthese photo mailers are easy to peel and seal with a strong flap adhesive, no licking of glue or water to moisten when working with multiple mailings. Meanwhile, clean look and crisp white material give it a professional appearance.
BrandValBox #ad
ManufacturerValBox #ad
Part NumberVB018
ModelVB018

10. HERKKA

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Size 4-1/8 x 9-1/2 Inch, White, 24 LB, #10 Security Self-Seal Envelopes, No.10 Windowless Bussiness Envelopes, Security Tinted with Printer Friendly Design, 500 Count

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HERKKA #ad - Perfect for quick, mass business mailings. Click the Orange Button to order now. Premium security tint pattern: the interior of our #10 security envelopes use a dark navy, offer the protection contents and sensitive information, heavy coverage security tint to provide guaranteed privacy for your legal or business mail, a security tint makes envelopes hard to see through that ensures upmost privacy.

500 pack self seal bussiness envelopes:herkka #10 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, invoices, or other confidential documents. 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! Fully compatible with most inkjet and laser printers for quick and easy addressing.

Easy seal closure: our #10 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. Perfect for check printing design: herkka envelopes ideal for standard business & legal documents and sensitive correspondence, manufactured with a 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.
BrandHERKKA #ad
ManufacturerHERKKA #ad
Part NumberNo10-Lixing