Double Window #10 Check Envelopes with Inverted Gummed Flap – 4 1/8" x  9 1/2" 

This Double Window Check Envelope is security-lined for complete confidentiality and features a standard gummed flap for secure closure. Save hours of addressing time with these convenient envelopes.

Designed with an inverted flap for use with machine inserters, these envelopes are ideal for bottom-of-page checks and other formats requiring automated insertion. The diagonal seam and inverted flap allow smooth, high-speed processing while keeping your mail professional and secure.

Dimensions:

• Envelope Size:  4 1/8" x 9 1/2"
• Top Window: 4" x 1" (positioned 11/16" from the left and 9/16" from the top)
• Bottom Window: 3 3/4" x 7/8" (positioned 7/8" from the left and 1" from the bottom)

Key Features:

• Security-Lined: Protects sensitive information and keeps contents confidential.
• Inverted Diagonal Gummed Flap: Ideal for machine insertion and fast sealing.
• Machine Inserter Compatible: Diagonal seam ensures smooth automated processing.
• Check format: Perfect alignment with standard bottom of page check formats.

These envelopes combine efficiency, security, and compatibility, making them a reliable choice for payroll, payments, and other business mailings.