---
product_id: 33875533
title: "ALDES 8 Inch Round Spring Loaded Backdraft Damper - Professional Grade"
brand: "aldes"
price: "41 zł"
currency: PLN
in_stock: false
url: https://www.desertcart.pl/products/33875533-aldes-8-inch-round-spring-loaded-backdraft-damper-professional-grade
store_origin: PL
region: Poland
---

# 20-gauge steel housing Minimal pressure to open -22 to 180°F range ALDES 8 Inch Round Spring Loaded Backdraft Damper - Professional Grade

**Brand:** aldes
**Price:** 41 zł
**Availability:** ❌ Out of Stock

## Summary

> 💨 Keep the airflow flowing, not the backdrafts!

## Quick Answers

- **What is this?** ALDES 8 Inch Round Spring Loaded Backdraft Damper - Professional Grade by aldes
- **How much does it cost?** 41 zł with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/33875533-aldes-8-inch-round-spring-loaded-backdraft-damper-professional-grade)

## Best For

- aldes enthusiasts

## Why This Product

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

## Key Features

- • **Robust Design:** Crafted from durable galvanized steel for long-lasting performance.
- • **Effortless Operation:** Requires minimal pressure to open, ensuring smooth airflow.
- • **Versatile Installation:** Easily installable in any orientation for seamless integration.
- • **Multiple Sizes Available:** Choose from a variety of sizes to fit your specific HVAC needs.
- • **Ultimate Airflow Control:** Experience premium backdraft protection with spring-loaded aluminum blades.

## Overview

The ALDES 8 Inch Round Spring Loaded Backdraft Damper is a professional-grade solution designed to prevent backflow in HVAC systems. With its durable aluminum blades and galvanized steel housing, it operates efficiently across a wide temperature range, ensuring optimal airflow control in any installation.

## Description

American Aldes delivers the premier backdraft damper solution favored for residential, commercial and industrial installations around the world. The highly rated automatic backdraft damper provides a complete seal, with no leakage to prevent backdraft airflows. It has been designed for low pressure drop and to require almost zero pressure to open the damper flaps when air is flowing the correct direction. The entire assembly inserts into the ductwork for easy installation and prevent leakage. Available in 4", 5", 6", 7", 8", 10", 12", 14" and 16".

## Features

- Highest Rated Premium Airflow Control Backdraft Dampers
- Spring-loaded butterfly aluminum damper blades encased in a 20-guage galvanized steel housing
- May be installed in any position or orientation to prevent backflow and designed for use in AC, Heating, Vent and other HVAC application temperatures from -22 to 180 degrees F (Fahrenheit)
- Extremely easy and secure inline duct insertion installation. Available in 4", 5", 6", 7", 8", 10", 12", 14" and 16".
- Minimal pressure to open. 0.04 to 0.08 in. w.g. Maximum automatic back flow protection

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | American Aldes |
| Part Number | 99 026 |
| Item Weight | 10 ounces |
| Product Dimensions | 2.75 x 7.6 x 7.6 inches |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![ALDES 8 Inch Round Spring Loaded Backdraft Damper - Professional Grade - Image 1](https://m.media-amazon.com/images/I/81-16g80ECL.jpg)
![ALDES 8 Inch Round Spring Loaded Backdraft Damper - Professional Grade - Image 2](https://m.media-amazon.com/images/I/81moe-qTvRL.jpg)
![ALDES 8 Inch Round Spring Loaded Backdraft Damper - Professional Grade - Image 3](https://m.media-amazon.com/images/I/81+jD0-ek5L.jpg)
![ALDES 8 Inch Round Spring Loaded Backdraft Damper - Professional Grade - Image 4](https://m.media-amazon.com/images/I/81fIHIyMjYL.jpg)

## Questions & Answers

**Q: Can this be installed on the side Eve of the house? I need a back draft damper for my vent hood.**
A: Not unless it is facing upward would you want to do that. While it has some springs on the flaps, I would doubt the spring's long term reliability in closing. In my installation, I have a 6" duct from the fan hood to an adapter into the 8" Damper / Duct - out of the weather. And in Florida essential to keeping out qpp degree humidity. Works as advertised and works quite. Best one I've found

**Q: I have only 3" of accessible 8" pipe to place the damper; will this be enough space for the fan to open completely?**
A: Yes, you should be OK With 3”.  The flaps open outwards (into the 2.8” depth of the unit).

**Q: how tall is the damper**
A: I installed it awhile ago but it is an 8" O.D. damper. It has a nice soft rubber seal around the outside and should fit perfect in an 8" exhaust pipe.

**Q: I need to buy this 8 inch and a 6 inch but I can't figure out how to order the 6 inch there's not an option  t input a choice help please**
A: We are currently out of stock of the 6" ones. Please check back in a couple of days.

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**Shop now:** [https://www.desertcart.pl/products/33875533-aldes-8-inch-round-spring-loaded-backdraft-damper-professional-grade](https://www.desertcart.pl/products/33875533-aldes-8-inch-round-spring-loaded-backdraft-damper-professional-grade)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-03-15*