---
product_id: 321971941
title: "Defender Security Prime-Line S 4780 21 In., White Painted Carbon Steel, Hinged 4-Bar Window Grill (Single Pack)"
price: "€ 227.07"
currency: EUR
in_stock: true
url: https://www.desertcart.be/products/321971941-defender-security-prime-line-s-4780-21-in-white-painted
store_origin: BE
region: Belgium
---

# Defender Security Prime-Line S 4780 21 In., White Painted Carbon Steel, Hinged 4-Bar Window Grill (Single Pack)

**Price:** € 227.07
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Defender Security Prime-Line S 4780 21 In., White Painted Carbon Steel, Hinged 4-Bar Window Grill (Single Pack)
- **How much does it cost?** € 227.07 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/321971941-defender-security-prime-line-s-4780-21-in-white-painted)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Defender Security Prime-Line S 4780 21 In., White Painted Carbon Steel, Hinged 4-Bar Window Grill (Single Pack)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Prime-Line Products |
| Part Number | 1 |
| Item Weight | 4.41 pounds |
| Product Dimensions | 1 x 31 x 12.25 inches |
| Country of Origin | Taiwan |
| Item model number | S 4780 |
| Is Discontinued By Manufacturer | No |
| Color | White |
| Style | Hinged (Egress) |
| Finish | White |
| Material | Steel |
| Item Package Quantity | 1 |
| Included Components | Operable Window Guard, and mounting screws |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Goods are warranted against manufacturing defects for 1 year. In no case is Prime-Line responsible for user related damage or damage incurred during installation. Warranty is void if products are subjected to abnormal conditions, misapplication or abuse. |

## Images

![Defender Security Prime-Line S 4780 21 In., White Painted Carbon Steel, Hinged 4-Bar Window Grill (Single Pack) - Image 1](https://m.media-amazon.com/images/I/61M9uSQiB9L.jpg)

## Questions & Answers

**Q: With hinged wg, can i put an ac in the window during the summer since i can open it?**
A: This is an egress child fall prevention guard so there cannot be more than 4"H gap if you open the window. This item is used on single/double hung window.

**Q: How can I get replacement hardware for the egress style window guards??? They work great but the kids take them out and I need to replace 6 of them.**
A: Unfortunately, Prime-Line does not have replacement parts for this item.

**Q: Can you use more then one for a long window?**
A: No, not advisable.

**Q: Can you screw this on metal window ?**
A: This item is used on single/double hung window.. It has to fit around the outside of the window frame of the inside window.

## Frequently Bought Together

- Prime-Line S 4780 21 In., White Painted Carbon Steel, Hinged 4-Bar Window Grill (Single Pack)
- Segal S 4768 Carbon Steel Fixed 4-Bar Window Grill for Home Security and Child Safety, 21-1/4 In., White Black (1 Set)
- Prime-Line S 4776 21 In., White Painted Carbon Steel, Hinged 4-Bar Window Grill (Single Pack)

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**Shop now:** [https://www.desertcart.be/products/321971941-defender-security-prime-line-s-4780-21-in-white-painted](https://www.desertcart.be/products/321971941-defender-security-prime-line-s-4780-21-in-white-painted)

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*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-10-23*