WESTERN STATES #6-3/4 Poly Window Envelopes 3.625 x 6.5 24 White Blue Wesco Tint 500

Professional mail fit

These #6-3/4 poly window envelopes measure 3.625 x 6.5 inches and are built for high-volume business mailing. The white sulphite stock carries SFI certification and a 92% brightness rating for a clean, professional appearance. A blue Wesco inside tint adds document security while the diagonal seam construction supports smooth machine insertion. Each box contains 500 envelopes.

Consistent feed performance

The vellum finish reduces friction during extended print or inserting runs, helping prevent jams when processing large batches. Remoistening seals activate reliably across repeated cycles without the variability of pressure-sensitive adhesives. The poly window film holds its clarity and tension through high-speed folder-inserter passes. Diagonal seams maintain structural integrity under continuous mechanical handling.

Verify window placement

Confirm the A-style window dimensions of 1-1/8 x 4-3/4 inches align with your form layout before ordering. The window sits 3/4 inch from the left edge and 7/16 inch from the bottom, a fixed position that must match your address block. Ensure your inserting equipment accepts the 24# paper weight and flap-down orientation. Check that 4.5 lbs per box fits your storage and handling workflow.