---
product_id: 322608720
title: "neverest Klimapartner - RKI 5\" - Professional Backdraft Damper Inline Spring Loaded for Dryer Duct"
brand: "neverest"
price: "773 DH"
currency: MAD
in_stock: true
reviews_count: 5
url: https://www.desertcart.ma/products/322608720-neverest-klimapartner-rki-5-professional-backdraft-damper-inline-spring-loaded
store_origin: MA
region: Morocco
---

# easy install 5" duct size prevents backdraft neverest Klimapartner - RKI 5" - Professional Backdraft Damper Inline Spring Loaded for Dryer Duct

**Brand:** neverest
**Price:** 773 DH
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate Your Airflow Game!

## Quick Answers

- **What is this?** neverest Klimapartner - RKI 5" - Professional Backdraft Damper Inline Spring Loaded for Dryer Duct by neverest
- **How much does it cost?** 773 DH with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ma](https://www.desertcart.ma/products/322608720-neverest-klimapartner-rki-5-professional-backdraft-damper-inline-spring-loaded)

## Best For

- neverest enthusiasts

## Why This Product

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

## Key Features

- • **Robust Construction:** Galvanized steel housing with aluminum blades ensures durability.
- • **Seamless Integration:** Effortlessly fits into 5" ducts for a sleek installation.
- • **User-Friendly Design:** Spring-loaded mechanism allows for automatic opening and closing.
- • **Versatile Applications:** Perfect for AC, dryers, and exhaust systems in any setting.
- • **Whisper-Quiet Operation:** Rubber seal eliminates rattling for a peaceful environment.

## Overview

The neverest Klimapartner RKI 5" Backdraft Damper is a professional-grade inline spring-loaded device designed to prevent backflow in ventilation ducts. Made from premium materials, including galvanized steel and stainless steel components, it ensures a tight seal and quiet operation. Ideal for various HVAC applications, this damper is easy to install and perfect for both residential and commercial use.

## Description

neverest Klimapartner - RKI 5" - Professional Backdraft Damper Inline Spring Loaded for Dryer Duct

## Features

- ⚙️ PRODUCT FEATURES The backflow damper RKI opens and closes automatically. It has a strong spring and can be installed either horizontally or vertically. The flap is suitable for retrofitting since it is completely inside the duct. Backdraft damper for insertion into 5 inch ventilation ducts.
- ⚙️ PREMIUM MATERIAL The housing of the flap is made of galvanized steel. The flap blades are made of aluminum, while the axle and spring are made of stainless steel. Tight sealing and fastening of the duct are achieved by the rubber strip attached to the outside of the draft blocker damper. The rubber seal prevents loud rattling when the flap blades open and close.
- ⚙️ MULTI-USE Designed for use in AC, dryers, exhaust, extractor or range hoods, heating systems, vents, and other residential, commercial, and industrial HVAC applications. Please note that this is to be installed in metal ducts only. Measure the diameter of your duct before purchasing.
- ⚙️ PERFORMANCE Duct draft stopper prevent cold air or wind from entering the ventilation pipe. In this case, the flap is installed in such a way that the flap leaves only open into the outgoing air direction. This means that no (cold) air/wind can penetrate the ventilation pipe from the outside.
- ⚙️ EASY INSTALLATION The backflow Preventer valve is installed by pushing it into the ventilation pipe as far as it will go. The position of the spring should be horizontal when the flap is installed horizontally so that it can be opened and closed optimally. This also applies to the vertical installation.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | neverest |
| Part number | 4054503009868 |
| Item Weight | 150 g |
| Item model number | Backdraft Damper RKI 125 |
| Size | 5 inches |
| Color | Silver |
| Style | Industrial |
| Finish | Stainless |
| Material | Stainless Steel |
| Pattern | Galvanized Steel Backdraft for Dryer Duct |
| Shape | Circular |
| Number Of Pieces | 1 |
| Special Features | Easy to Install |
| Specific uses | Residential, commercial, and industrial HVAC applications |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![neverest Klimapartner - RKI 5" - Professional Backdraft Damper Inline Spring Loaded for Dryer Duct - Image 1](https://m.media-amazon.com/images/I/71H9GJrhllL.jpg)

## Available Options

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

## Questions & Answers

**Q: How much pressure does it take to open? No rating is given (in comparison, the expensive Aldes brand gives 0.04 to 0.08 in. w.g.)**
A: Thank you for your question. Ive uploaded a graph, in metric, which hopefully you can use if your aware of your ventilators specs. It can be found under the product pictures. Otherwise you need 10 pascals to open the vent in a 4 inch duct. The spring is relatively strong on our RKI series the RK series has a weaker spring. Because the RKI has a stronger spring we suggest it be installed after the ventilator with the flaps opening away from the ventilator.
Hope this helps
klimapartner

**Q: In a *horizontal* duct installation, is there an optimal orientation for the spring/blades? (e.g., orient spring horizontally or vertically)? Thanks.**
A: Thank you for your questoin. If you install the damper parallel, horizontal, to the ground it doesnt matter which way the sping/blades are. If you intsall the backdraft shutter vertically you want the blades/springs perpendicular to the ground. For further questions please dont hesitate to ask.
sincerely,
klimapartner

**Q: My vent lines are already merged below the roof, to a 90° 4" vent roof pipe cover. Will your cover work for me? My old flapper broke.**
A: Thank you for your question. Yes our backdraft shutter will work for you as long as you have a strong enough ventilator to push it open from that distance. The springs are stronger on the RKI then our RK model. If you install, which we recomend, the shutter right behind your ventilator you will not have any problems. The joy of the RKI series is that you can order it, install it without much hassle and if it doesnt work send it back. The RK 4 inch series https://www.amazon.com/dp/B011INHF5A has a weaker spring. This would also work and you need to connect it between two ducts.
sincerely
team klimapartner

**Q: Go a kitchen exhaust should this be installed close to the fan or closer to the exterior wall.**
A: If your goal is keeping the cold or hot air out of the house, it should be installed near the exterior wall of house. It will attract less grease build up the further away from hood and it will be easier to service or clean if you can access it from the outside rather than opening up interior walls.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Stopped air reversion!!
  

*by C***S on Reviewed in the United States on 13 September 2024*

My house has several exhaust vents, so air being sucked through my dryer vent while my hvac is running has been a battle. I would find condensation in my dryer drum on hot days due to the standard backflow valve that is installed on most exterior venting dryers being insufficient.This backflow valve slipped right into the back of the exterior backflow vent duct and has been there for over a month now, no consequence to dryer performance. It appears to be of a good build quality, seals well, and is of an excellent value. My dryer duct is a standard size, this will work in most homes. I dont recommend it be installed on the dryer side of the duct as the rubber may deteriorate due to heat.

### ⭐⭐⭐⭐⭐ 







  
  
    Amazing quality.  Just buy it.
  

*by T***P on Reviewed in Canada on 17 December 2023*

works amazing and opens and closes effortlesslystops the cold from coming and easy to vent out even with 70cfm fan at 20ft distance

### ⭐⭐⭐⭐⭐ 







  
  
    Perfect!
  

*by D***Z on Reviewed in the United Kingdom on 24 December 2023*

I just installed it, and it works flawlessly.There are some comments that the springs are too strong, but in my case, I have not noticed this issue.I have a typical cheap fan, and I see flaps are moving- make sure this shutter is literally behind the fan unit.

## Frequently Bought Together

- neverest® RKI 5" Professional Backdraft Damper Inline Spring Loaded for Dryer Duct Fits Only with Metal Ducts
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*Product available on Desertcart Morocco*
*Store origin: MA*
*Last updated: 2026-02-28*