4UPALT9 – 4up Quadrant W-2 Double Window Envelope – Moisture Seal (for Inserting Equipment)

Wide-body quadrant envelope built for inserting equipment

4UPALT9 is a moisture-seal double window envelope sized specifically for high-speed inserting equipment running 4-up quadrant W-2 forms. It’s slightly wider than the standard quadrant envelope, which gives automated inserters more tolerance when feeding folded statements. Cellophane windows with a security tint keep employee data covered.

Load the folded quadrant statement so the recipient address shows through the top window and the matching wage data appears in the bottom window; the moisture flap seals with standard sealing equipment or by hand. Since this envelope is sized for machine feeding, request a sample and test a short run on your inserter before committing to the full 500-count case.

Specifications

• Size: 5-5/8" x 9"
• Top window: 9/16" x 3-7/8", 5/16" from the left edge, 3-9/16" from the bottom
• Bottom window: 11/16" x 3-7/8", 4-3/8" from the left edge, 2-1/2" from the bottom
• Weight: 24#, white wove stock
• Ink color: black
• Flap opening: long
• Seal: moisture (remoistening/gum seal)
• Sold in cases of 500

This envelope is compatible with all major tax and payroll software; a sample run through your own inserter is the best way to confirm fit.

Production & Shipping

This is a stocked item, so there is no proof step. Orders placed on a business day are packed and shipped within 1–2 business days from our fulfillment warehouse, and tracking is emailed as soon as the package leaves. Standard ground transit inside the continental U.S. adds roughly 1–5 days depending on your distance from the warehouse; expedited shipping can be selected at checkout if you are working against a filing deadline.