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Box of 500 white wove #9 double-window envelopes with Quick Stick seal

Northeastern Envelope Co.

Northeastern Envelope Co. #9 Double Window Envelope 3.875 x 8.875 24 lb Quick Stick Seal Box of 500

SKU CH-AESV-CEQGH

Double-window #9 envelopes measuring 3.875 x 8.875 inches with Quick Stick seal, supplied in a box of 500

  • Double window layout shows sender and recipient details at once
  • Quick Stick adhesive seals securely without moisture or tape
  • 24 lb White Wove stock resists tearing during handling
  • #9 dimensions fit standard business correspondence
  • Box of 500 envelopes supports high-volume mailing needs

Professional Mailing Envelopes

These #9 double-window envelopes measure 3.875 x 8.875 inches and are made from 24 lb white wove paper. They are designed for businesses that send invoices, statements or direct-mail pieces in high volume. The 500-count box supports daily mailroom operations without frequent reordering.

Quick Stick Seal Construction

Each envelope features a pressure-sensitive adhesive strip that seals without moisture or a separate sealer. The peel-and-stick action speeds up stuffing lines and eliminates the mess of traditional gummed flaps. The 24 lb stock resists tearing during automatic inserting equipment runs.

Window Placement for Automated Processing

The top window sits 1 x 4-1/8 inches, positioned 3/8 inch from the left and 2-3/16 inches from the bottom. The bottom window measures 1-1/8 x 4-1/8 inches, set 3/8 inch from the left and 5/8 inch from the bottom. This layout aligns with common address-block positions so printed forms show through without manual adjustment. Not suited for oversized documents or single-window workflows.

Highlights

  • Double window layout shows sender and recipient details at once
  • Quick Stick adhesive seals securely without moisture or tape
  • 24 lb White Wove stock resists tearing during handling
  • #9 dimensions fit standard business correspondence
  • Box of 500 envelopes supports high-volume mailing needs

Specifications

BrandNortheastern Envelope

Questions about this item

What are the exact dimensions of the top and bottom windows on this #9 double-window envelope?

The top window measures 1" x 4-1/8" and sits 3/8" from the left edge and 2-3/16" from the bottom. The bottom window measures 1-1/8" x 4-1/8" and sits 3/8" from the left edge and 5/8" from the bottom.

What paper weight and finish does this envelope use, and how does that affect printer feeding?

It uses 24 lb White Wove paper, a standard weight that feeds reliably through most laser and inkjet printers without jamming, while the wove finish provides a smooth surface for clean toner adhesion.

How does the Quick Stick seal work, and what is the common mistake users make when sealing?

The Quick Stick seal uses a pressure-sensitive adhesive strip protected by a release liner; peel the liner off completely, then press the flap firmly along its full length — skipping the liner removal or pressing only the centre are the usual errors.

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