---
product_id: 65864965
title: "3-5/8 x 8-11/16#8 Check Envelopes by Sigma Source, 500-Pack Double Windows, Security Tinted and Self Seal For Payroll Quickbooks Checks, Business Checks and Laser checks (NOT FOR INVOICES)"
brand: "sigma source"
price: "€ 111.82"
currency: EUR
in_stock: true
category: "Office Product"
url: https://www.desertcart.gr/products/65864965-3-5-8-x-8-11-16-8-check-envelopes
store_origin: GR
region: Greece
---

# 3-5/8 x 8-11/16#8 Check Envelopes by Sigma Source, 500-Pack Double Windows, Security Tinted and Self Seal For Payroll Quickbooks Checks, Business Checks and Laser checks (NOT FOR INVOICES)

**Brand:** sigma source
**Price:** € 111.82
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** 3-5/8 x 8-11/16#8 Check Envelopes by Sigma Source, 500-Pack Double Windows, Security Tinted and Self Seal For Payroll Quickbooks Checks, Business Checks and Laser checks (NOT FOR INVOICES) by sigma source
- **How much does it cost?** € 111.82 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/65864965-3-5-8-x-8-11-16-8-check-envelopes)

## 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

Size: 500Sigma Source Double Window Check Envelopes (3-5/8 x 8-11/16):Envelopes are designed for payroll checks, quickbooks checks and Laser checks.Our business check envelopes are compatible with standard 3 1/2" x 8 1/2" online printable checks that allow addresses on check to show through windows Our #8 Envelopes are designed for check envelopes - NOT for invoices or billing statements. (If you're sending invoices or billing statements use #9 Envelope instead - see ASIN# B07452HFQB)Key Features and Characteristics:#8 Envelope size is 3-5/8" x 8-11/16" - is just the right size for Quickbooks checks and other business Computer Checks.Adhesive is easy peel and self-sealing - Glue is prime quality and it easily shows if envelope seal is tampered.Self-seal business envelopes is designed to hide sensitive information Envelope is security tinted with blue checkered design - for confidentiality, preventing check content from showing or someone peeking!Color is White and is made with 24 LB Premium Smooth/Woven paper - envelope is strong (not flimsy or cheap)Primary Usage and Key Benefits: For mailing payroll checks or business checks to employees or to professional clients Hand-over Employees their paychecks enclosed in check envelopes is professional and dignifying - they feel respected and trusted. No need to print recipient or sender address on envelopes - simply print your quickbook check then slip it inside the check envelope. Saves time and expenses of separately addressing envelopes - simply position the addresses to show through the windows

## Features

- &lt;li&gt; Designed for Quickbooks checks, Laser checks and it is compatible with other online printable checks (DOES NOT FIT INVOICES)&lt;/li&gt;
- &lt;li&gt; Envelope is Double Window and Security Tinted for added privacy to protect check content and confidentiality
- &lt;li&gt; Envelope has easy peel and self-seal features - saves time and cost
- &lt;li&gt; Adhesive is strong and stays glued during transport - no water or Licking Required! Just peel, press and you're done!
- &lt;li&gt; Color: White, Texture: Smooth/Woven; Quantity: 500/box, Dimension: 3-5/8" x 8-11/16" (Checks Will Not Move) &lt;/li&gt;

## Images

![3-5/8 x 8-11/16#8 Check Envelopes by Sigma Source, 500-Pack Double Windows, Security Tinted and Self Seal For Payroll Quickbooks Checks, Business Checks and Laser checks (NOT FOR INVOICES) - Image 1](https://images-na.ssl-images-amazon.com/images/I/51M6S%2BPblML.jpg)
![3-5/8 x 8-11/16#8 Check Envelopes by Sigma Source, 500-Pack Double Windows, Security Tinted and Self Seal For Payroll Quickbooks Checks, Business Checks and Laser checks (NOT FOR INVOICES) - Image 2](https://images-na.ssl-images-amazon.com/images/I/51lcq90HjwL.jpg)
![3-5/8 x 8-11/16#8 Check Envelopes by Sigma Source, 500-Pack Double Windows, Security Tinted and Self Seal For Payroll Quickbooks Checks, Business Checks and Laser checks (NOT FOR INVOICES) - Image 3](https://images-na.ssl-images-amazon.com/images/I/51rG4EDAXML.jpg)
![3-5/8 x 8-11/16#8 Check Envelopes by Sigma Source, 500-Pack Double Windows, Security Tinted and Self Seal For Payroll Quickbooks Checks, Business Checks and Laser checks (NOT FOR INVOICES) - Image 4](https://images-na.ssl-images-amazon.com/images/I/51LTBe2twRL.jpg)
![3-5/8 x 8-11/16#8 Check Envelopes by Sigma Source, 500-Pack Double Windows, Security Tinted and Self Seal For Payroll Quickbooks Checks, Business Checks and Laser checks (NOT FOR INVOICES) - Image 5](https://images-na.ssl-images-amazon.com/images/I/41gqoRqyUFL.jpg)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-03-11*