No. 10-1/2 envelopes with Redi-Seal feature are designed for use with Insurance Form CMS-1500 and similar forms. Redi-Seal closure requires no moisture to seal. Simply raise the lower flap and press to seal. The 1" x 4-1/2" window is positioned 4-1/4" from the left and 19/16" from the bottom of the envelope. Inside security tint offers more privacy. 24 lb.



General Information

Manufacturer Quality Park Products
Manufacturer Part Number 21438
Manufacturer Website Address
Brand Name Quality Park
Product Line Redi-Seal
Product Name Redi-Seal Window Envelopes
Packaged Quantity 500 / Box
Product Type Envelope

Product Information

Mailer/Envelope Type Single Window
Mailer/Envelope Classification #10 1/2
Mailer/Envelope Width 4.50"
Mailer/Envelope Length 9.50"
Mailer/Envelope Weight 24 lb
Closure Type Self-sealing
Seam Contemporary
Window Location Right
Window Height 4.50"
Window Width 1"
  • Self-adhesive
  • Security Tint

Physical Characteristics

Color White
Material Wove

Quality Park Redi-Seal Window Envelopes Single Window - #10 1/2 - 4.50 500/Box

$110.99 Regular Price
$105.99Sale Price
  • Return Policy

    Customers are granted a 30 day money back guarantee on most items. Contact our office for more details. Any additional warranty is covered by manufacturer.