--- product_id: 47383679 title: "100#8 Custom Double Window Check Envelopes by Sigma Source Self Sealing Security Tinted for Small Business Payroll Paycheck Quickbooks Checks, Computer Checks, Laser Checks (Does NOT FIT INVOICES)" brand: "sigma source" price: "R128" currency: ZAR in_stock: false reviews_count: 2 url: https://www.desertcart.co.za/products/47383679-100-8-custom-double-window-check-envelopes-by-sigma-source store_origin: ZA region: South Africa --- # 100#8 Custom Double Window Check Envelopes by Sigma Source Self Sealing Security Tinted for Small Business Payroll Paycheck Quickbooks Checks, Computer Checks, Laser Checks (Does NOT FIT INVOICES) **Brand:** sigma source **Price:** R128 **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** 100#8 Custom Double Window Check Envelopes by Sigma Source Self Sealing Security Tinted for Small Business Payroll Paycheck Quickbooks Checks, Computer Checks, Laser Checks (Does NOT FIT INVOICES) by sigma source - **How much does it cost?** R128 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/47383679-100-8-custom-double-window-check-envelopes-by-sigma-source) ## Best For - sigma source enthusiasts ## Why This Product - Trusted sigma source brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Sigma Source check envelopes make it easy to handle payroll expenses. Payments going to employees and clients are protected. Our envelopes feature double windows, peace of mind security, strong adhesive that will not open during transport, self peel and seal - reduces work, improves cost and improves your business bottom line. The envelopes security tint keeps the checks confidential, protecting your employees and clients payroll and paychecks - one less thing to worry about. Our check-size envelopes come in boxes of 50s, 100s and 500s - convenient for small business and growing companies - will not blow your budget and yet prevent frequent reordering. Double window Sigma Source envelopes makes it easy to slide in a check or invoice and send with the sender's and recipient's addresses displayed - no need to print or write addresses, which saves time and reduces cost. Sigma Source envelopes are security tinted for privacy and are constructed from high quality 24-pound wove paper. Envelopes used for mailing payments to employees, contractors and clients. Color is White with security tint Size: 3 9/16" x 8 3/4" Peel & Seal closure for easy sealing Double windows for extra security during mailing 100 envelopes per pack ## Features - Make sure this fits by entering your model number. - #8 Quickbooks Check Envelopes size (3-9/16" x 8-3/4") - Peel and seal flap business check envelopes with easy closure - Envelopes check security tint keeps paycheck sensitive information secure and confidential - Compatible with standard 3 1/2" x 8 1/2" checks and allow addresses on check to show through windows - Envelope is Designed To Fit Computer Printed Checks, QuickBooks Checks, Microsoft Money Checks and Business Laser Checks ## Images ![100#8 Custom Double Window Check Envelopes by Sigma Source Self Sealing Security Tinted for Small Business Payroll Paycheck Quickbooks Checks, Computer Checks, Laser Checks (Does NOT FIT INVOICES) - Image 1](https://m.media-amazon.com/images/I/71MjPbLoMNL.jpg) ## Customer Reviews ### ⭐⭐⭐ Awkward *by C***S on Reviewed in the United States πŸ‡ΊπŸ‡Έ on August 16, 2018* The strips that protect the sticky part of the envelopes are awkward to pull off. And the envelopes seem to be slightly small. Takes me twice as long to stuff envelopes with these as it does others. ### ⭐⭐⭐⭐ Great for business checks *by K***O on Reviewed in the United States πŸ‡ΊπŸ‡Έ on August 13, 2018* Good size for company checks --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.za/products/47383679-100-8-custom-double-window-check-envelopes-by-sigma-source](https://www.desertcart.co.za/products/47383679-100-8-custom-double-window-check-envelopes-by-sigma-source) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-04-24*