---
product_id: 47383680
title: "50 #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: "€ 19.73"
currency: EUR
in_stock: true
category: "Office Product"
url: https://www.desertcart.ie/products/47383680-50-8-custom-double-window-check-envelopes-by-sigma-source
store_origin: IE
region: Ireland
---

# 50 #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:** € 19.73
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** 50 #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?** € 19.73 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/47383680-50-8-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. The double window on 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 5/8" x 8 5/8"   Peel & Seal closure for easy sealing   Double windows for extra security during mailing   50 envelopes per pack

## Features

- &lt;ul&gt;&lt;li&gt;#8 Quickbooks Check Envelopes size (3-5/8" x 8-11/16")&lt;/ul&gt;&lt;/li&gt;
- &lt;ul&gt;&lt;li&gt;Peel and seal flap business check envelopes with easy closure&lt;/ul&gt;&lt;/li&gt;
- &lt;ul&gt;&lt;li&gt;Envelopes check security tint keeps paycheck sensitive information secure and confidential&lt;/ul&gt;&lt;/li&gt;
- &lt;ul&gt;&lt;li&gt;Compatible with standard 3 1/2" x 8 1/2" checks and allow addresses on check to show through windows&lt;/ul&gt;&lt;/li&gt;
- &lt;ul&gt;&lt;li&gt; Envelope is Designed To Fit Computer Printed Checks, QuickBooks Checks, Microsoft Money Checks and Business Laser Checks&lt;/ul&gt;&lt;/li&gt;

## Images

![50 #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://images-na.ssl-images-amazon.com/images/I/41gqoRqyUFL.jpg)

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-21*