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Window Envelopes
Window envelopes streamline business mailings by eliminating the need for handwritten or printed labels. Designed for invoices, checks, and other important documents, these envelopes offer a polished and professional look while ensuring accuracy in delivery. At Advanced Filing Concepts, we offer a full selection of single window envelopes and double window envelopes in bulk boxes of 500—perfect for high-volume business use. Our envelopes come in standard #9 and #10 sizes, as well as many other sizes, designed to fit most standard business documents. Choose from self-seal, security-tinted, and custom-printed options to match your needs.
Sub Categories
WSE
#6-3/4 Window Envelopes (3-5/8 x 6-1/2) 24lb White, Side Seam, Digi-Clear, 500/Box
Your Price:
$29.99
WSE
#10 Window Envelopes (4 1/8 x 9 1/2) 24lb White, Side Seam, Digi-Clear Window G, 500/Box
Your Price:
$33.99
WSE
#9 Window Envelopes (3 7/8 x 8 7/8) 24lb White, Side Seam, Digi-Clear, 500/Box
Your Price:
$28.99
WSE
#9 Window Envelopes (3 7/8 x 8 7/8) 24lb White, Digi-Clear Window C, Black Tint, 500/Box
Your Price:
$36.99
WSE
#10 Window Envelope (4 1/8 x 9 1/2) 24lb White, Digi-Clear Window C, Blue Tint, 500/Box
Your Price:
$34.99
WSE
#10 Window Envelopes (4 1/8 x 9 1/2) 24lb White, Side Seam, Digi-Clear Window B, 500/Box
Your Price:
$26.99
WSE
#10 Window Envelopes (4 1/8 x 9 1/2) 24lb White, Digi-Clear Window H, Black Tint, 500/Box
Your Price:
$34.99
WSE
#10 Postage Meter Window Envelopes (4 1/8 x 9 1/2) 24lb White, 500/Box (W2614)
Your Price:
$36.99
WSE
#10 Window Envelopes (4 1/8 x 9 1/2) 24lb White, Side Seam, Digi-Clear Window A, 500/Box
Your Price:
$26.99
WSE
#10 Window Envelopes (4 1/8 x 9 1/2) 24lb White, Side Seam, Digi-Clear Window C, 500/Box
Your Price:
$27.95
WSE
#10 Window Envelopes (4 1/8 x 9 1/2) 24lb White, Side Seam, Digi-Clear Window H, 500/Box
Your Price:
$26.99
WSE
#10 Digi-Clear Window Envelopes – FDIC Tint, Side Seam, 24 lb White, 4-1/8" x 9-1/2"
Your Price:
$37.99
![#10 Window Envelopes [4-1/8 H x 9-1/2 W] 24lb, Coastal Cream, 500/Box (W3208)](https://cdn11.bigcommerce.com/s-1p4wii2p9w/images/stencil/250x250/products/6948/24478/10-Digi-Clear-Envelopes-4-18-H-x-9-12-W-24lb-Coastal-Cream-500Box_15645__96919.1712922828.png?c=1 "#10 Window Envelopes [4-1/8 H x 9-1/2 W] 24lb, Coastal Cream, 500/Box (W3208)")
![#10 Window Envelopes [4-1/8 H x 9-1/2 W] 24lb, Natural Alabaster, 500/Box (W3207)](https://cdn11.bigcommerce.com/s-1p4wii2p9w/images/stencil/250x250/products/6947/24476/10-Digi-Clear-Envelopes-4-18-H-x-9-12-W-24lb-Natural-Alabaster-500Box_15643__24667.1712922822.png?c=1 "#10 Window Envelopes [4-1/8 H x 9-1/2 W] 24lb, Natural Alabaster, 500/Box (W3207)")
WSE
#10 Digi-Clear Envelopes (4-1/8 H x 9-1/2 W) 24lb, Natural Alabaster, 500/Box
Your Price:
$80.95
![#10 Window Envelopes [4-1/8 H x 9-1/2 W] 24lb, Smoke Gray, 500/Box (W3206)](https://cdn11.bigcommerce.com/s-1p4wii2p9w/images/stencil/250x250/products/6946/24474/10-Digi-Clear-Envelopes-4-18-H-x-9-12-W-24lb-Smoke-Gray-500Box_15641__02014.1712922816.png?c=1 "#10 Window Envelopes [4-1/8 H x 9-1/2 W] 24lb, Smoke Gray, 500/Box (W3206)")
WSE
#10 Window Envelopes (4 1/8 x 9 1/2) 24lb White, Digi-Clear Window B, Black Tint, 500/BOX
Your Price:
$34.99
WSE
#10 Window Envelopes (4 1/8 x 9 1/2) 24lb White, Digi-Clear Window B, Black Tint, 500/BX
Your Price:
$33.99
WSE
#10 Window Envelopes (4 1/8 x 9 1/2) 24lb White, Digi-Clear Window C, Black Tint, 500/Box
Your Price:
$34.99
WSE
#6-3/4 Window Envelopes (3 5/8 x 6 1/2) 24lb White, Digi-Clear, Blue FDIC Tint, 500/Box
Your Price:
$37.99
| Option | Best For | Notes |
|---|---|---|
| #10 (4-1/8" × 9-1/2") | Outgoing invoices & statements | Standard business size |
| #9 (3-7/8" × 8-7/8") | Reply/return envelopes | Fits inside #10 |
| Single Window | Recipient address only | Simplest, most common |
| Double Window | Recipient + return address | No manual return printing |
| Security Tint | Privacy for sensitive data | Great for statements |
| Digi-Clear® Window | Laser printer workflows | Resists heat/clouding |