---
product_id: 38559678
title: "500#8 Gummed Double Window Security Check Envelopes - Designed for QuickBooks Checks, Business Mailing, and Security - Computer Printed Checks - Gummed Flap - 3 5/8 X 8 11/16"
brand: "blue summit supplies"
price: "€ 60.44"
currency: EUR
in_stock: true
reviews_count: 13
category: "Blue Summit Supplies"
url: https://www.desertcart.pt/products/38559678-500-8-gummed-double-window-security-check-envelopes-designed-quickbooks
store_origin: PT
region: Portugal
---

# Strong gummed seal, no peel & stick Fits QuickBooks checks perfectly Security tint hides sensitive info 500#8 Gummed Double Window Security Check Envelopes - Designed for QuickBooks Checks, Business Mailing, and Security - Computer Printed Checks - Gummed Flap - 3 5/8 X 8 11/16

**Brand:** blue summit supplies
**Price:** € 60.44
**Availability:** ✅ In Stock

## Summary

> 📬 Seal your checks with confidence and style — because your business deserves the best!

## Quick Answers

- **What is this?** 500#8 Gummed Double Window Security Check Envelopes - Designed for QuickBooks Checks, Business Mailing, and Security - Computer Printed Checks - Gummed Flap - 3 5/8 X 8 11/16 by blue summit supplies
- **How much does it cost?** € 60.44 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/38559678-500-8-gummed-double-window-security-check-envelopes-designed-quickbooks)

## Best For

- blue summit supplies enthusiasts

## Why This Product

- Trusted blue summit supplies brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Reliable Gummed Seal:** Moisten and fold for a durable, tamper-evident closure that outperforms self-seal envelopes.
- • **Cost-Effective Bulk Pack:** 500 envelopes delivering premium quality and security at a fraction of competitor prices.
- • **Privacy-First Security Tint:** Laser checks stay confidential with a unique security pattern that blocks prying eyes.
- • **Professional Grade Durability:** Crafted from sturdy 24 LB white wove paper to maintain a polished look throughout transit.
- • **Tailored for QuickBooks Checks:** Wider double window design ensures perfect fit without altering your software settings.

## Overview

These 500 No. 8 double window security check envelopes by Blue Summit Supplies are engineered for seamless compatibility with QuickBooks and other computer printed checks. Featuring a wider double window design, they display only addresses while concealing sensitive check details behind a security tint. The strong gummed flap ensures a tamper-evident seal, maintaining professionalism with durable 24 LB white wove paper. Ideal for businesses seeking reliable, cost-effective mailing solutions without compromising privacy.

## Description

desertcart.com : 500#8 Gummed Double Window Security Check Envelopes - Designed for QuickBooks Checks, Business Mailing, and Security - Computer Printed Checks - Gummed Flap - 3 5/8 X 8 11/16 : Office Products

Review: Great for use with Intuit QuickBooks Checks! - Blue Summit Supplies are Awesome! I really don't have time to write reviews - but I love their products. They cost slightly less than their competitors - but I think their quality is slightly better. These are definitely "privacy" envelopes; and they seal securely. I use them for Intuit QuickBooks accounts payable vendor checks. We use the full sheet laser checks; keep the bottom stub for our records - mail the check and the middle stub (which has transaction detail) to the vendor. The QB check fits perfectly into these envelopes - with our name/address showing in the top window; the vendor name/address showing in the bottom window. Before, we bought from a "deluxe" supplier - and the price was almost 3x's as much (and sometimes their envelope window cut off the bottom line - which is a problem because it has the zip code... and sometimes it seemed their envelopes were getting a little "tight" to put my checks into). No problems with Blue Summit!
Review: Great value, haven't had one failure yet - I've been using these exact brand and type of envelopes for a mid-sized company for several years, having gone through over 2000 individual envelopes. I can't remember a single instance where one failed, or improperly sealed or had some issue. That's in addition to the great value they provide over more expensive alternatives—which is why they're on my automatic delivery subscription.

## Features

- Precision Fit #8 Envelopes For Checks – Businesses and accounting teams mailing vendor payments use these #8 double window envelopes for QuickBooks checks measuring 3 5/8 x 8 11/16 inches, designed to align with voucher-style check layouts for consistent insertion during accounts payable workflows.
- QuickBooks Check Envelopes with Address Alignment – Offices and payroll teams using QuickBooks checks use these number 10 double window QuickBooks envelopes for checks designed to display the return address in the top window and the payee address below, eliminating the need for labels during weekly check runs.
- Safe Mailing with Inner Security Tint for Privacy – Businesses mailing payroll, paychecks, and financial documents use these #8 security envelopes with a printed security tint that helps reduce read-through and conceal memo lines during transit.
- Reliable Gummed Seal – Accounting teams and mailrooms handling high-volume check runs use these envelopes with a traditional moisture-activated gummed flap that creates a secure closure for consistent sealing across payroll and accounts payable batches.
- Bulk 500 Pack For Office Workflows – Small businesses, accounting teams, and home offices use this 500-count pack of #8 double window check envelopes made from 24lb white paper to maintain a dependable supply for recurring payment and mailing workflows.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01NAQROBP |
| Additional Features | Double Window, Gummed Seal, Security Tint |
| Best Sellers Rank | #25,329 in Office Products ( See Top 100 in Office Products ) #95 in Business Mailing Envelopes |
| Brand Name | Blue Summit Supplies |
| Closure Type | Gummed |
| Color | White |
| Customer Reviews | 4.5 4.5 out of 5 stars (740) |
| Item Dimensions L x W | 8.6"L x 3.6"W |
| Item Shape | Rectangular |
| Manufacturer | Blue Summit Supplies |
| Material Type | Paper |
| Model Name | No. 8 Double Window Security Check Envelopes For QuickBooks |
| Number of Items | 1 |
| Occasion | Business Mail |
| Occasion Type | Business Mail, Checks |
| Recommended Uses For Product | Checks |
| Size | Number 8 |
| Style | Security |
| UPC | 865181000337 |
| Unit Count | 500 Count |

## Product Details

- **Brand:** Blue Summit Supplies
- **Closure Type:** Gummed
- **Color:** White
- **Material:** Paper
- **Occasion:** Business Mail

## Images

![500#8 Gummed Double Window Security Check Envelopes - Designed for QuickBooks Checks, Business Mailing, and Security - Computer Printed Checks - Gummed Flap - 3 5/8 X 8 11/16 - Image 1](https://m.media-amazon.com/images/I/71UimhX0xoL.jpg)
![500#8 Gummed Double Window Security Check Envelopes - Designed for QuickBooks Checks, Business Mailing, and Security - Computer Printed Checks - Gummed Flap - 3 5/8 X 8 11/16 - Image 2](https://m.media-amazon.com/images/I/81M+RylpM6L.jpg)
![500#8 Gummed Double Window Security Check Envelopes - Designed for QuickBooks Checks, Business Mailing, and Security - Computer Printed Checks - Gummed Flap - 3 5/8 X 8 11/16 - Image 3](https://m.media-amazon.com/images/I/81r7AdMxwuL.jpg)
![500#8 Gummed Double Window Security Check Envelopes - Designed for QuickBooks Checks, Business Mailing, and Security - Computer Printed Checks - Gummed Flap - 3 5/8 X 8 11/16 - Image 4](https://m.media-amazon.com/images/I/712fiv8yAmL.jpg)
![500#8 Gummed Double Window Security Check Envelopes - Designed for QuickBooks Checks, Business Mailing, and Security - Computer Printed Checks - Gummed Flap - 3 5/8 X 8 11/16 - Image 5](https://m.media-amazon.com/images/I/81f1MQYwz3L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for use with Intuit QuickBooks Checks!
*by A***R on March 6, 2018*

Blue Summit Supplies are Awesome! I really don't have time to write reviews - but I love their products. They cost slightly less than their competitors - but I think their quality is slightly better. These are definitely "privacy" envelopes; and they seal securely. I use them for Intuit QuickBooks accounts payable vendor checks. We use the full sheet laser checks; keep the bottom stub for our records - mail the check and the middle stub (which has transaction detail) to the vendor. The QB check fits perfectly into these envelopes - with our name/address showing in the top window; the vendor name/address showing in the bottom window. Before, we bought from a "deluxe" supplier - and the price was almost 3x's as much (and sometimes their envelope window cut off the bottom line - which is a problem because it has the zip code... and sometimes it seemed their envelopes were getting a little "tight" to put my checks into). No problems with Blue Summit!

### ⭐⭐⭐⭐⭐ Great value, haven't had one failure yet
*by A***T on February 1, 2026*

I've been using these exact brand and type of envelopes for a mid-sized company for several years, having gone through over 2000 individual envelopes. I can't remember a single instance where one failed, or improperly sealed or had some issue. That's in addition to the great value they provide over more expensive alternatives—which is why they're on my automatic delivery subscription.

### ⭐⭐⭐⭐⭐ Excellent Quality at a Good Price
*by M***N on August 23, 2018*

As my title says, these envelopes are excellent quality at a good price. I didn't even notice that I had changed from the more expensive ones the check companies sell. I definitely will order these again! (This is in stark contrast to the generic name/address labels I ordered from another company instead of the expensive Avery ones. The generic name/address labels were inexpensive, but poor quality and thus a total waste of money.)

## Frequently Bought Together

- 500#8 Gummed Double Window Security Check Envelopes - Designed for QuickBooks Checks, Business Mailing, and Security - Computer Printed Checks - Gummed Flap - 3 5/8 X 8 11/16
- Amazon Basics Multipurpose Copy Printer Paper, 8.5 x 11 in, 20 lb, 10 Reams, 5000 Sheets, 92 Bright, White
- Amazon Basics 1/3-Cut Tab, Assorted Positions File Folders, Letter Size, Manila - Pack of 100

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.pt/products/38559678-500-8-gummed-double-window-security-check-envelopes-designed-quickbooks](https://www.desertcart.pt/products/38559678-500-8-gummed-double-window-security-check-envelopes-designed-quickbooks)

---

*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-04-25*