---
product_id: 401981296
title: "neverest® RK Backflow Valve 125 mm Automatic Backflow Valve for Pipe Installation Pipe Connector Galvanised Steel with Sealing Rubber Aluminium Flaps"
brand: "neverest"
price: "R$521"
currency: BRL
in_stock: true
url: https://www.desertcart.com.br/products/401981296-neverest-rk-backflow-valve-125-mm-automatic-backflow-valve-pipe
store_origin: BR
region: Brazil
---

# Rubber sealing 125mm width Galvanized steel neverest® RK Backflow Valve 125 mm Automatic Backflow Valve for Pipe Installation Pipe Connector Galvanised Steel with Sealing Rubber Aluminium Flaps

**Brand:** neverest
**Price:** R$521
**Availability:** ✅ In Stock

## Summary

> 🌬️ Breathe Easy, Live Smart!

## Quick Answers

- **What is this?** neverest® RK Backflow Valve 125 mm Automatic Backflow Valve for Pipe Installation Pipe Connector Galvanised Steel with Sealing Rubber Aluminium Flaps by neverest
- **How much does it cost?** R$521 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/401981296-neverest-rk-backflow-valve-125-mm-automatic-backflow-valve-pipe)

## 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

- • **Cold Air Blocker:** Keep your space cozy by preventing cold drafts from entering.
- • **Durable Construction:** Built to last with galvanized steel and stainless steel components.
- • **Whisper-Quiet Design:** Enjoy a peaceful environment with noise-reducing rubber seals.
- • **Versatile Installation:** Easily fits into both horizontal and vertical ducts.
- • **Effortless Airflow Control:** Experience seamless ventilation with automatic flap operation.

## Overview

The neverest® RK 5 inch Backdraft Shutter is a high-quality ventilation solution designed for 125mm ducts. Made from durable galvanized steel with aluminum flap leaves and stainless steel components, it features a rubber sealing that minimizes noise and prevents cold air ingress. Ideal for both horizontal and vertical installations, this backflow flap ensures efficient airflow control while maintaining a comfortable indoor environment.

## Description

neverest® RK 5 inch Backdraft Shutter 125mm Ducting Round Connector Galvanized Steel with Rubber Sealing Fits Only with Metal Ducts

## Features

- Backdraft Nominal width 125 mm (5 inch) (exact dimensions see drawing), Galvanized steel housing, Flap leaves made of aluminum, Axis and spring made of stainless steel, Back draught valve for insertion into ventilation pipes, Reduces noise due to internal rubber seal
- The backflow flap RK opens and closes automatically. It has a smooth-running spring and should therefore be installed horizontally or vertically only as an exhaust air flap.
- The damper blades open even at low air flow. The inner sound insulation strip prevents loud rattling when striking the damper blades.
- Backflow flaps prevent the ingress of cold air or wind through the ventilation pipe. Here, the flap is installed so that the damper blades open only in the outflowing air direction. This means that no (cold) air / wind can penetrate from outside through the ventilation duct.
- INSTALLATION: The backflow flap is installed by inserting it into the ventilation pipe until it stops. The position of the spring should be horizontal for horizontal installation of the flap so that it can open and close optimally.

## Images

![neverest® RK Backflow Valve 125 mm Automatic Backflow Valve for Pipe Installation Pipe Connector Galvanised Steel with Sealing Rubber Aluminium Flaps - Image 1](https://m.media-amazon.com/images/I/61R-zDPpQKL.jpg)

## Available Options

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

## Frequently Bought Together

- neverest® RK 5 inch Backdraft Shutter 125mm Ducting Round Connector Galvanized Steel with Rubber Sealing Fits Only with Metal Ducts
- NEBURORA 118-140mm Hose Clip Adjustable 304 Stainless Steel Duct Clamps 4 Pack Worm Drive Hose Clamp Clips 5 inch Diameter Fuel Line Hose Pipe Clamps for Dryer Vent Air Duct Automotive Plumb

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.com.br/products/401981296-neverest-rk-backflow-valve-125-mm-automatic-backflow-valve-pipe](https://www.desertcart.com.br/products/401981296-neverest-rk-backflow-valve-125-mm-automatic-backflow-valve-pipe)

---

*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-06-16*