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10 Best 9 x 12 self seals of 2025

Explore top picks
  • Best Choice

    1

    Amazon Basics Catalog Mailing Envelopes, Peel and Seal, 9x12 Inch, Brown Kraft, 250-Pack
    Amazon Basics

    Amazon Basics Catalog Mailing Envelopes, Peel and Seal, 9x12 Inch, Brown Kraft, 250-Pack

    • size:250-Pack
    • color:Brown Kraft
    • shape:Rectangular
    • material:Paper
    • closure:Peel and Seal
    9.9
    Exceptional
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  • Value for Money

    2

    iMailer - 500 Pcs - 9" x 12" Clear Plastic Cellophane Bags - Resealable Self Sealing Cello Poly Bags for A4, Letter Sized Documents, Art Print, Clothing
    iMailer

    iMailer - 500 Pcs - 9" x 12" Clear Plastic Cellophane Bags - Resealable Self Sealing Cello Poly Bags for A4, Letter Sized Documents, Art Print, Clothing

    9.7
    Exceptional

  • 3

    Amazon Basics Catalog Mailing Envelopes, Peel and Seal, 9x12 Inch, 100-Pack, White
    Amazon Basics

    Amazon Basics Catalog Mailing Envelopes, Peel and Seal, 9x12 Inch, 100-Pack, White

    • size:100-Pack
    • color:White
    • shape:Rectangular
    • material:Paper
    • closure:Peel-and-seal
    9.6
    Exceptional

  • 4

    Aimoh 9 X 12 Self-Seal Brown Kraft Catalog Mailing Envelopes - 28lb - 100 Count, 9x12 Inch (38300)
    Aimoh

    Aimoh 9 X 12 Self-Seal Brown Kraft Catalog Mailing Envelopes - 28lb - 100 Count, 9x12 Inch (38300)

    9.5
    Excellent

  • 5

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

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

    9.3
    Excellent
  • See Today’s Deals & Prices

  • 6

    Columbian 9 x 12 Security Envelopes, 100/Box, 9 x 12 Inches, Release & Seal Self Seal, SimplySafe Tamper Evident Pull Strip, White (COLO930)
    Columbian

    Columbian 9 x 12 Security Envelopes, 100/Box, 9 x 12 Inches, Release & Seal Self Seal, SimplySafe Tamper Evident Pull Strip, White (COLO930)

    9.2
    Excellent

  • 7

    Quality Park 9" x 12" Self-Seal Catalog Envelopes, for Mailing, Organizing and Storage, Brown Kraft, Heavy 28-lb Paper, 100 Per Box (QUA44562)
    Quality Park

    Quality Park 9" x 12" Self-Seal Catalog Envelopes, for Mailing, Organizing and Storage, Brown Kraft, Heavy 28-lb Paper, 100 Per Box (QUA44562)

    8.9
    Very Good

  • 8

    Columbian 9 x 12 Catalog Envelopes with Self Seal Closure, 28 lb Brown Kraft, for Mailing Flat Letter Size Documents or Photos, 100 Per Box (COLO341)
    Columbian

    Columbian 9 x 12 Catalog Envelopes with Self Seal Closure, 28 lb Brown Kraft, for Mailing Flat Letter Size Documents or Photos, 100 Per Box (COLO341)

    8.8
    Very Good

  • 9

    Columbian 9 x 12 Catalog Envelopes, Self Seal Closure, 28 lb White Wove, for Mailing Flat Letter Size Documents, 100 Per Box (COLO342)
    Columbian

    Columbian 9 x 12 Catalog Envelopes, Self Seal Closure, 28 lb White Wove, for Mailing Flat Letter Size Documents, 100 Per Box (COLO342)

    8.6
    Very Good

  • 10

    25 Pack Catalog Mailing Envelopes, 9 x 12 Inches Self-Seal White Manilla Envelopes for Mailing, Organize, storage, Home, Office Business
    FloraSea

    25 Pack Catalog Mailing Envelopes, 9 x 12 Inches Self-Seal White Manilla Envelopes for Mailing, Organize, storage, Home, Office Business

    8.4
    Good