---
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: "$146"
currency: NZD
in_stock: true
url: https://www.desertcart.nz/products/38559678-500-8-gummed-double-window-security-check-envelopes-designed-quickbooks
store_origin: NZ
region: New Zealand
---

# Strong gummed flap seal, no fuss Fits QuickBooks & computer checks perfectly Double window + security tint for privacy 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:** $146
**Availability:** ✅ In Stock

## Summary

> 📬 Secure your checks in 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?** $146 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/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

- • **Bulk Pack Efficiency:** 500 envelopes per box to keep your office stocked and mailing on schedule.
- • **Reliable Gummed Seal:** Moisten and fold for a durable, tamper-evident closure that outperforms self-seal.
- • **Professional Grade Paper:** 24 LB white wove paper maintains a crisp, polished look for your business mail.
- • **Privacy-First Security Tint:** Laser checks stay hidden, protecting sensitive info during transit.
- • **Tailored for QuickBooks Checks:** Wider double window design ensures seamless check insertion without software tweaks.

## Overview

These 500 gummed double window security check envelopes are designed specifically for QuickBooks and computer printed checks, featuring a wider double window for easy check insertion without software changes. The security tint ensures sensitive check details remain hidden, while the strong gummed flap provides a reliable seal. Made from durable 24 LB white wove paper, these envelopes maintain a professional appearance throughout mailing.

## Description

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

## Features

- Perfectly fits QuickBooks Checks, or other computer printed checks: checks will slide in easier with a slightly wider design than the standard 2 window 8 5/8 envelope
- Checks amounts and memos will not be visible: Only addresses will show through our unique double window design with no need to change QuickBooks, QB Online, or Quicken settings (WILL NOT FIT STATEMENTS)
- Provides complete check security: your laser checks will be hidden with our security tint design
- Just moisten or lick the flap and fold it over to create a strong lasting seal: Save money with our strong gummed seal design is quick and easy and is guaranteed to stay sealed (NOT SELF SEAL)
- Maintains professional look and feel throughout transit with our durable 24 LB white wove envelope paper

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Blue Summit Supplies |
| Brand | Blue Summit Supplies |
| Item Weight | 5.06 pounds |
| Product Dimensions | 8.5 x 12 x 4.5 inches |
| Is Discontinued By Manufacturer | No |
| Color | white |
| Closure | Gummed |
| Shape | Rectangular |
| Material Type | Paper |
| Number of Items | 500 |
| Manufacturer Part Number | BSS-92588-005 |

## Product Details

- **Brand:** Blue Summit Supplies
- **Color:** white
- **Closure Type:** Gummed
- **Material:** Paper
- **Number of Items:** 500

## 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)

## 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

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

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-03-08*