---
product_id: 258779433
title: "PRIME-LINE Defender Security U 9920 Security Bar For Sliding Patio Doors, Adjustable, Aluminum Construction With Aluminum Finish, Pack Of 1"
brand: "prime-line"
price: "£31.63"
currency: GBP
in_stock: false
reviews_count: 2
url: https://www.desertcart.co.uk/products/258779433-prime-line-defender-security-u-9920-security-bar-for-sliding
store_origin: GB
region: United Kingdom
---

# Adjustable 28-48 in fit Securely open for fresh air Aluminum durable security PRIME-LINE Defender Security U 9920 Security Bar For Sliding Patio Doors, Adjustable, Aluminum Construction With Aluminum Finish, Pack Of 1

**Brand:** prime-line
**Price:** £31.63
**Availability:** ❌ Out of Stock

## Summary

> 🛡️ Lock in peace of mind, unlock fresh vibes!

## Quick Answers

- **What is this?** PRIME-LINE Defender Security U 9920 Security Bar For Sliding Patio Doors, Adjustable, Aluminum Construction With Aluminum Finish, Pack Of 1 by prime-line
- **How much does it cost?** £31.63 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/258779433-prime-line-defender-security-u-9920-security-bar-for-sliding)

## Best For

- prime-line enthusiasts

## Why This Product

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

## Key Features

- • **Custom Fit Security:** Easily adjusts to fit sliding doors from 28 to 48 inches, ensuring a perfect, secure fit every time.
- • **Fresh Air, No Worries:** Keeps your sliding door safely ajar, letting in fresh air without compromising security.
- • **Robust Aluminum Build:** Crafted from lightweight yet strong aluminum with a sleek finish for lasting durability and style.
- • **Universal Compatibility:** Works seamlessly on metal, vinyl, or wood sliding doors and windows, no matter the panel configuration.
- • **Hassle-Free Installation:** Includes all mounting hardware and requires just a Phillips screwdriver—security made simple.

## Overview

The PRIME-LINE Defender Security Bar U 9920 is an adjustable aluminum security bar designed to reinforce sliding patio doors. It fits openings from 28 to 48 inches, supports safe ventilation by securing doors in an open position, and is compatible with most sliding door materials and configurations. Easy to install with included hardware, it offers a sleek, durable solution for enhanced home security.

## Description

PRIME-LINE Defender Security U 9920 Security Bar For Sliding Patio Doors, Adjustable, Aluminum Construction With Aluminum Finish, Pack Of 1

## Features

- Easy to install and provides backup security for your sliding patio door
- Adjustable to accommodate openings from 28 in to 48 in
- The adjustable feature allows you to safely enjoy fresh air by securing your door in an open position
- This item works on almost all sliding glass doors whether the sliding panel is in front of the stationary panel or behind the stationary panel (refer to Prime-Line's How-To video for instructions on how to install)
- Can be used on metal, vinyl or wood sliding patio doors or windows
- Mounting hardware included
- A Phillips head screwdriver is required for installation
- Please refer to the line art drawing for dimensions and compare with your needs before ordering

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Target species | Dog |
| Unit count | 1 count |
| Age range (description) | Adult |
| Closure type | manual |
| Manufacturer | Prime-Line Products (Home Improvement) |
| UPC | 049793099204 |
| Global Trade Identification Number | 00049793099204 |
| Part number | U 9920 |
| Item Weight | 363 g |
| Product Dimensions | 2.54 x 9.53 x 77.15 cm; 362.87 g |
| Item model number | U 9920 |
| Size | 1 Pack |
| Color | Aluminum |
| Finish | Aluminum |
| Item Package Quantity | 1 |
| Included components | Hardware;Door, Gate & Window Hardware;screen-door-hardware |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Aluminum
- **Colour:** Aluminum
- **Brand:** PRIME-LINE
- **Item weight:** 0.8 Pounds
- **Mounting type:** Door Mount

## Images

![PRIME-LINE Defender Security U 9920 Security Bar For Sliding Patio Doors, Adjustable, Aluminum Construction With Aluminum Finish, Pack Of 1 - Image 1](https://m.media-amazon.com/images/I/414ZOF1iwXL.jpg)
![PRIME-LINE Defender Security U 9920 Security Bar For Sliding Patio Doors, Adjustable, Aluminum Construction With Aluminum Finish, Pack Of 1 - Image 2](https://m.media-amazon.com/images/I/51k+8Bhtw4L.jpg)
![PRIME-LINE Defender Security U 9920 Security Bar For Sliding Patio Doors, Adjustable, Aluminum Construction With Aluminum Finish, Pack Of 1 - Image 3](https://m.media-amazon.com/images/I/31dYr4dyG-L.jpg)
![PRIME-LINE Defender Security U 9920 Security Bar For Sliding Patio Doors, Adjustable, Aluminum Construction With Aluminum Finish, Pack Of 1 - Image 4](https://m.media-amazon.com/images/I/411R3mOMsVL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good quality
*by I***B on 8 June 2021*

Good quality product. Recommended

### ⭐⭐⭐⭐⭐ Perfect
*by P***P on 11 July 2020*

Just perfect

## Frequently Bought Together

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- BeBecome Sliding Door Security Bar，17-50 inch Adjustable Patio Door Security bar with Rubber Tips Apartment Bedroom Bottom of Door Heavy Duty Interior White

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**Shop now:** [https://www.desertcart.co.uk/products/258779433-prime-line-defender-security-u-9920-security-bar-for-sliding](https://www.desertcart.co.uk/products/258779433-prime-line-defender-security-u-9920-security-bar-for-sliding)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-17*