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The BSC PREFERRED QUA90120 is a size 10 window business envelope designed for professional mailing applications. Built from white wove super-white 24 lb stock, it provides a crisp, clean appearance suited to correspondence, billing statements, invoices, and other business documents. The clear poly window eliminates the need for address labels on compatible folded inserts, and the full-size fully gummed flap ensures a secure seal. Each box contains 500 envelopes, making it a practical bulk option for high-volume mailing needs in office, administrative, and light industrial environments.
This envelope is suited for standard business mailings where a windowed format is required to display a pre-printed or folded address. Typical applications include payroll inserts, utility statements, direct mail campaigns, and general office correspondence. The size 10 format accepts standard tri-folded 8.5-by-11-inch sheets, which is the most common document size in North American business use. Both office staff and mailroom professionals rely on this format daily across a wide range of industries.
Designed as a standard size 10 window envelope suitable for use with typical tri-folded 8.5-by-11-inch business documents, check inserts, and statement mailers where a windowed format is appropriate.
No tools or trade licensing are required for use. Store envelopes flat in a cool, dry location to prevent gum from activating prematurely and to avoid warping the stock. When inserting documents, align the address block to the window opening before sealing to ensure full visibility. Moisten the gummed flap evenly for a consistent seal.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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