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Box of 500 bright white #10 envelopes with split seal closure

WESTERN STATES

WESTERN STATES #10 Regular Envelope 4.125 x 9.5 24# Bright White Split Seal Box of 500

SKU CH-XH5G-EZM94

Standard #10 business envelopes measuring 4.125 x 9.5 inches, 24 lb bright white sulphite paper with 96% brightness, split seal closure, acid-free and SFI certified, box of 500

  • Bright white 96% brightness for crisp print contrast
  • SFI certified sulphite paper from responsible forest sources
  • Acid-free stock prevents document yellowing over time
  • Split seal flap allows easy hand or machine sealing
  • Standard #10 size 4.125 x 9.5 fits business correspondence

Standard #10 Business Envelope

The Western States #10 regular envelope measures 4.125 x 9.5 inches and uses 24 lb bright white sulphite paper with a 96 percent brightness rating. The vellum finish provides a smooth surface suitable for laser and inkjet printing. Each box contains 500 envelopes with a diagonal seam construction and flap-down orientation.

Split Seal for High Volume Mailing

The split seal design features two separate adhesive strips covered by a single release liner, allowing quick sealing without moistening. This suits offices processing large batches of correspondence, invoices or statements where speed matters. Buyers needing a window envelope for address visibility or a heavier stock for durability should look at other options.

Consistent Performance Across Large Runs

The SFI certified sulphite stock maintains its stiffness and brightness across the full 500 count box, reducing misfeeds during extended print runs. Remoistening adhesive on the split seal activates reliably under standard office humidity. A full carton holds 2500 envelopes for departments that replenish from bulk storage.

Highlights

  • Bright white 96% brightness for crisp print contrast
  • SFI certified sulphite paper from responsible forest sources
  • Acid-free stock prevents document yellowing over time
  • Split seal flap allows easy hand or machine sealing
  • Standard #10 size 4.125 x 9.5 fits business correspondence

Specifications

BrandThe Envelope Supplies Shop

Questions about this item

What printer paper weight and finish will feed reliably with these 24# vellum envelopes?

Most laser and inkjet printers handle 24# vellum stock through the manual feed tray; use the envelope setting and avoid duplex.

Can I run these split-seal envelopes through an older folder-inserter that expects a single remoistening strip?

The split-seal flap has two separate gummed strips, so a machine designed for one continuous seal may not apply moisture evenly.

How do I confirm the box contains 500 SFI-certified bright white envelopes at 96% brightness?

Count the envelopes — 500 per box — and check the carton label for SFI certification and 96% brightness markings.

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