Envelope #9, Double Window, 500 ct. 3 7/8 x 8 7/8

These #9 double‑window envelopes provide a professional, efficient way to mail statements, invoices, and business correspondence. The dual windows display both the recipient and sender information clearly, eliminating the need for manual addressing or printed labels. Made from durable white paper, these envelopes maintain a crisp, clean appearance through handling and transport.

Sized at 3 7/8" x 8 7/8", they are designed to fit standard business documents folded for #9 format. Each box contains 500 envelopes, ideal for offices, billing departments, and high‑volume mail operations.

Key Features

• #9 double‑window business envelopes
• Displays both address and return information
• Clean white paper construction
• Size: 3 7/8" x 8 7/8"
• Box of 500

Ideal Uses

• Mailing invoices and statements
• Business correspondence
• Billing and accounting departments
• High‑volume office mailings
• Automated or printed address workflows