---
product_id: 3930034
title: "#8 5/8 Security Envelopes, Double Window, Self Seal Envelopes for Invoices/Statements, 3-5/8\" x 8-5/8\", 24 lb White, 500/Box (QUA24539)"
brand: "quality park"
price: "110958CFA"
currency: XOF
in_stock: true
reviews_count: 8
category: "Quality Park"
url: https://www.desertcart.sn/products/3930034-8-5-8-security-envelopes-double-window-self-seal-envelopes
store_origin: SN
region: Senegal
---

# 3-5/8" x 8-5/8" perfect fit Security tint & pattern Self-seal no-moisture flap #8 5/8 Security Envelopes, Double Window, Self Seal Envelopes for Invoices/Statements, 3-5/8" x 8-5/8", 24 lb White, 500/Box (QUA24539)

**Brand:** quality park
**Price:** 110958CFA
**Availability:** ✅ In Stock

## Summary

> 📬 Seal the deal with security and style—mail smarter, not harder!

## Quick Answers

- **What is this?** #8 5/8 Security Envelopes, Double Window, Self Seal Envelopes for Invoices/Statements, 3-5/8" x 8-5/8", 24 lb White, 500/Box (QUA24539) by quality park
- **How much does it cost?** 110958CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/3930034-8-5-8-security-envelopes-double-window-self-seal-envelopes)

## Best For

- quality park enthusiasts

## Why This Product

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

## Key Features

- • **Bulk Value Pack:** 500 envelopes per box—ideal for busy professionals managing monthly billing cycles without running out.
- • **Effortless Sealing:** Redi-Seal press-to-seal flap eliminates moisture and fuss, saving time on every envelope.
- • **Ultimate Privacy Shield:** Security tint scrambles sensitive info, keeping your data safe from prying eyes—even under light.
- • **Precision Fit for Business:** Double window design aligns perfectly with invoices and statements for seamless mailing.
- • **Trusted Quality & Durability:** Made from sturdy 24 lb white wove paper with side seams, ensuring a professional look and feel.

## Overview

Quality Park #8 5/8 Security Envelopes offer a professional double window design sized 3-5/8" x 8-5/8" to fit standard invoices and statements. Featuring a no-moisture Redi-Seal self-adhesive flap and a security tint pattern that protects sensitive information, these 24 lb white envelopes come in a convenient 500-count box, perfect for efficient, secure business mailing.

## Description

Compatible with most standard 3-1/2 x 8-1/2 inch checks for payroll and accounts payable applications. The top window (7/8" x 3-1/2") is positioned 5/8" from the left and 2-1/4" from the bottom of the envelope. The bottom window (1"x 4 ) is 5/8" from the left and 5/8" from the bottom. Poly windows, inside tint.

Review: Good quality - Value for money, perfect size, easy of use also definitely recommend.
Review: Great value - This is an exact match to another envelope we were purchasing for much more. These work well and are much more cost effective. Have ordered these a couple of times now, all good quality.

## Features

- Our 500-ct Quality Park #8 5/8 double window envelopes (3-5/8 in x 8-5/8 in) fit select invoices & statements; our self sealing envelopes have Redi-Seal press-to-seal flaps & security tints
- Redi-Seal mailing envelopes have a unique double flap design that requires no moisture; just raise the lower flap and press for a no-fuss self seal envelope
- Double window envelopes show just the sender and receiver addresses; our business envelopes keep private info out of view; top window: 7/8" x 3-1/2"; bottom window 1" x 4"; envelope: 3-5/8" x 8-5/8"
- Security envelopes shield identification numbers & private data with a special security pattern to scramble the appearance of text; keeps envelope contents safe from prying eyes, even if held to light
- #8 5/8 envelopes measure 3-5/8" x 8-5/8"; made of 24 lb white wove paper with side seams; stock up on boxes of 500 envelopes for monthly billing

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000AN39T6 |
| Additional Features | Self-Adhesive Closure |
| Best Sellers Rank | #15,468 in Office Products ( See Top 100 in Office Products ) #71 in Business Mailing Envelopes |
| Brand | Quality Park |
| Brand Name | Quality Park |
| Closure Type | Self-Seal |
| Color | White |
| Customer Reviews | 4.4 out of 5 stars 491 Reviews |
| Global Trade Identification Number | 00085227245397, 50085227245392 |
| Included Components | 24539 |
| Item Dimensions L x W | 8.63"L x 3.63"W |
| Item Shape | L Shaped |
| Item Type Name | Security Envelopes |
| Item Weight | 5.1 Pounds |
| Manufacturer | 0 |
| Material | Paper |
| Material Type | Paper |
| Model Name | QUA24539 |
| Number of Items | 500 |
| Occasion Type | Mailing |
| Recommended Uses For Product | Security |
| Size | 3-5/8 x 8-5/8 |
| Special Feature | Self-Adhesive Closure |
| Style | Security |
| UPC | 100003518851 641438560225 799916130610 804993587407 801593324401 809099278235 799198386170 085227245397 523160234660 619730724300 800188047138 799198641538 080850190274 823019738272 791836525057 806792125712 800011367495 696747451801 045555752943 666673164298 809302107673 641438150679 640206462822 638084794678 791836499198 |
| Unit Count | 500 Count |
| Warranty Description | 1-Year Limited |

## Product Details

- **Brand:** Quality Park
- **Closure Type:** Self-Seal
- **Color:** White
- **Material:** Paper
- **Number of Items:** 500

## Images

![#8 5/8 Security Envelopes, Double Window, Self Seal Envelopes for Invoices/Statements, 3-5/8" x 8-5/8", 24 lb White, 500/Box (QUA24539) - Image 1](https://m.media-amazon.com/images/I/61pBynotbuL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: How many checks can one envelope hold?**
A: I use QB checks and have sometimes put 2 checks with their stubs in them. Still had room if one needed to put more in.

**Q: i buy quickbooks redi seal for payroll checks their measurements are 8 3/4 w x 3 9/16 will these fit**
A: I also use QuickBooks laser checks. They fit just fine.

**Q: What are the window sizes?**
A: top left  window measures 3 1/2 inches x 3/4 inchlower left window measures 4 inches x 1 inchwe have in stock and are ready to ship today. Thank youGTN Office Basics

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good quality
*by A***Z on February 20, 2026*

Value for money, perfect size, easy of use also definitely recommend.

### ⭐⭐⭐⭐⭐ Great value
*by P***N on November 13, 2019*

This is an exact match to another envelope we were purchasing for much more. These work well and are much more cost effective. Have ordered these a couple of times now, all good quality.

### ⭐⭐⭐⭐⭐ Works Good
*by P***T on October 18, 2019*

I have bought these type of envelopes before and glue was not good, these work well.

## Frequently Bought Together

- Quality Park #8 5/8 Security Envelopes, Double Window, Self Seal Envelopes for Invoices/Statements, 3-5/8" x 8-5/8", 24 lb White, 500/Box (QUA24539)
- Amazon Basics Multipurpose Copy Printer Paper, 8.5" x 11", 20 lb, 8 Reams, 4000 Sheets, 92 Bright, White
- Quality Park #9 Security Envelopes, Double Window, Self Seal, Invoices/QuickBooks Statements, 3-7/8 x 8-7/8 Inches, 24 lb White, 500/Box (QUA24529)

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**Shop now:** [https://www.desertcart.sn/products/3930034-8-5-8-security-envelopes-double-window-self-seal-envelopes](https://www.desertcart.sn/products/3930034-8-5-8-security-envelopes-double-window-self-seal-envelopes)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-03-30*