---
product_id: 420583001
title: "500 Self Seal Double Window Security Envelopes - Designed For Quickbooks Checks - Computer Printed Checks - 3 5/8 X 8 11/16 (Not For Invoices)"
brand: "blue summit supplies"
price: "240 zł"
currency: PLN
in_stock: false
category: "Office Products/Office & School Supplies/Envelopes, Mailers & Shipping Supplies/Envelopes/Business Envelopes"
url: https://www.desertcart.pl/products/420583001-500-self-seal-double-window-security-envelopes-designed-for-quickbooks
store_origin: PL
region: Poland
---

# 500 Self Seal Double Window Security Envelopes - Designed For Quickbooks Checks - Computer Printed Checks - 3 5/8 X 8 11/16 (Not For Invoices)

**Brand:** blue summit supplies
**Price:** 240 zł
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** 500 Self Seal Double Window Security Envelopes - Designed For Quickbooks Checks - Computer Printed Checks - 3 5/8 X 8 11/16 (Not For Invoices) by blue summit supplies
- **How much does it cost?** 240 zł with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/420583001-500-self-seal-double-window-security-envelopes-designed-for-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

## Description

Your Quickbooks Printed Checks Will Line Up Perfectly It Can Be So Difficult To Find Envelopes That Fit Business Checks Perfectly. Some Will Show The Recipients Address But Not The Senders Address While Others Will Hide Parts Of The Addresses And Worse Others Will Show Parts Of The Check Like The Check Amount Or Check Memo. So Much For Security. Our No 8 Check Windowed Envelopes Have A Unique Bottom Window Design So Your Check Amounts And Memos Will Always Be Hidden And Our Window Locations Are Positioned Perfectly To Line Up With Your Addresses. No Need To Reformat Your Software. Bottom Window Location Of 3/4 From The Bottom And A Window Height Of 7/8 Prevents The Check Amounts From Showing In The Bottom Window Like Other Check Envelopesbottom Window Location Of 7/8 From The Left Side And A Window Width Of 3.5 Guarantees Your Recipients Address Will Show Without The Need To Reformat Quickbooks For Tri-Fold Voucher And 3 Checks Per Page Check Paper. Just Print And Slide The Check In Security With A Professional Look It Can Be Frustrating To Purchase Envelopes Only To Find Them Flimsy Enough To Have You Worried About Their Durability During Transit. Our Envelopes Are Made Of 24 Lb White Wove Paper That Will Provide A Professional Look From The Box All The Way To Your Destinationyour Payroll Checks Will Be Secure With An Easy To Use Peel And Seal Design That Will Hold Its Seal And Completely Hide Your Checks Behind Our Dark Black Security Tint 100% Money Back Guarantee We Stand Behind Our Products Completely. We Understand That Sometimes Buying Physical Products Can Be Difficult If You Cannot Physically See What You Are Buying However If Our Product Is Not Exactly What You Are Looking For Or Does Not Meet Your Expectation Then Send Them Back Anytime For A 100 % Refund.

## Features

- Your Quickbooks Printed Checks Will Line Up Perfectly It Can Be So Difficult To Find Envelopes That Fit Business Checks Perfectly. Some Will Show The Recipients Address But Not The Senders Address While Others Will Hide Parts Of The Addresses And Worse Others Will Show Parts Of The Check Like The Check Amount Or Check Memo. So Much For Security. Our No 8 Check Windowed Envelopes Have A Unique Bottom Window Design So Your Check Amounts And Memos Will Always Be Hidden And Our Window Locations Are Positioned Perfectly To Line Up With Your Addresses. No Need To Reformat Your Software. Bottom Window Location Of 3/4 From The Bottom And A Window Height Of 7/8 Prevents The Check Amounts From Showing In The Bottom Window Like Other Check Envelopesbottom Window Location Of 7/8 From The Left Side And A Window Width Of 3.5 Guarantees Your Recipients Address Will Show Without The Need To Reformat Quickbooks For Tri-Fold Voucher And 3 Checks Per Page Check Paper. Just Print And Slide The Check In Security With A Professional Look It Can Be Frustrating To Purchase Envelopes Only To Find Them Flimsy Enough To Have You Worried About Their Durability During Transit. Our Envelopes Are Made Of 24 Lb White Wove Paper That Will Provide A Professional Look From The Box All The Way To Your Destinationyour Payroll Checks Will Be Secure With An Easy To Use Peel And Seal Design That Will Hold Its Seal And Completely Hide Your Checks Behind Our Dark Black Security Tint 100% Money Back Guarantee We Stand Behind Our Products Completely. We Understand That Sometimes Buying Physical Products Can Be Difficult If You Cannot Physically See What You Are Buying However If Our Product Is Not Exactly What You Are Looking For Or Does Not Meet Your Expectation Then Send Them Back Anytime For A 100 % Refund.

## Images

![500 Self Seal Double Window Security Envelopes - Designed For Quickbooks Checks - Computer Printed Checks - 3 5/8 X 8 11/16 (Not For Invoices) - Image 1](https://images-na.ssl-images-amazon.com/images/I/41nbJSTQvcL.jpg)

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**Shop now:** [https://www.desertcart.pl/products/420583001-500-self-seal-double-window-security-envelopes-designed-for-quickbooks](https://www.desertcart.pl/products/420583001-500-self-seal-double-window-security-envelopes-designed-for-quickbooks)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-05-23*