---
product_id: 362875100
title: "Vent Systems 125 mm / 5\" Inch - Air Vent Duct Connector Flange - Plastic Ventilation Pipe with Valve - Ducting Connector for Round Flexible or Straight Pipes, Ventilation System HVAC"
brand: "vent systems"
price: "HK$451"
currency: HKD
in_stock: true
reviews_count: 3
url: https://www.desertcart.hk/products/362875100-vent-systems-125-mm-5-inch-air-vent-duct-connector
store_origin: HK
region: Hong Kong
---

# Fits 125 mm standard ducts Built-in gravity shutter valve Durable UV-resistant plastic Vent Systems 125 mm / 5" Inch - Air Vent Duct Connector Flange - Plastic Ventilation Pipe with Valve - Ducting Connector for Round Flexible or Straight Pipes, Ventilation System HVAC

**Brand:** vent systems
**Price:** HK$451
**Availability:** ✅ In Stock

## Summary

> 🌬️ Elevate your airflow game with smart, sleek ventilation!

## Quick Answers

- **What is this?** Vent Systems 125 mm / 5" Inch - Air Vent Duct Connector Flange - Plastic Ventilation Pipe with Valve - Ducting Connector for Round Flexible or Straight Pipes, Ventilation System HVAC by vent systems
- **How much does it cost?** HK$451 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/362875100-vent-systems-125-mm-5-inch-air-vent-duct-connector)

## Best For

- vent systems enthusiasts

## Why This Product

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

## Key Features

- • **Rugged & Weatherproof:** Crafted from UV-resistant plastic that withstands heat, cold, and humidity without cracking or warping.
- • **Smart Airflow Control:** Integrated gravity flap blocks unwanted drafts, odors, and insects while maintaining smooth ventilation.
- • **Effortless DIY Installation:** Pre-drilled holes allow quick, secure mounting with just four screws—no pro tools or skills needed.
- • **Seamless 125 mm Compatibility:** Perfectly engineered for all standard 5" ventilation pipes and extractor fans, ensuring airtight HVAC connections.
- • **Versatile Ventilation Upgrade:** Ideal for kitchens, bathrooms, AC vents, and extractor fans to boost airflow and energy efficiency.

## Overview

The Vent Systems 125 mm Air Vent Duct Connector Flange is a durable, UV-resistant plastic ventilation accessory designed for standard 5" ducts. Featuring a built-in gravity shutter valve, it prevents unwanted airflow and pests while ensuring smooth ventilation. Easy to install with pre-drilled holes, it’s perfect for enhancing HVAC, kitchen, and bathroom ventilation systems with reliable, airtight connections.

## Description

Full description not available

## Features

- FITS STANDARD 125 MM / 5" DUCTS – Designed for all 125 mm (4.94") round ventilation pipes and extractor fans. Provides a secure, airtight connection for HVAC, kitchen, and bathroom systems.
- STRONG PLASTIC BUILD – Made from durable, UV-resistant plastic for long-lasting use. Performs reliably in heat, cold, and humid environments without cracking or warping.
- BUILT-IN SHUTTER FUNCTION – Integrated gravity flap prevents unwanted airflow, odours, and insects while maintaining smooth ventilation performance indoors or outdoors.
- QUICK DIY INSTALLATION – Pre-drilled holes ensure easy wall or ceiling mounting. Fits securely with just four screws. No professional tools or skills required. (SCREWS AND CLAMPS NOT INCLUDED)
- IDEAL FOR MULTIPLE VENTILATION USES – Perfect for bathrooms, kitchens, extractor fans, and air conditioning vents. Improves airflow and energy efficiency throughout your home.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Vent Systems |
| Product Dimensions | 17 x 17 x 6 cm; 100 g |
| Size | 125 mm / 4.94" - with shutter |
| Colour | White |
| Material | Plastic |
| Shape | Rectangle |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 100 g |

## Product Details

- **Size:** 125 mm / 4.94" - with shutter
- **Material:** Plastic
- **Brand:** Vent Systems
- **Colour:** White
- **Item dimensions L x W x H:** 17 x 17 x 6 centimetres
- **Connector type:** Flange
- **Thread size:** 5 inch
- **Exterior finish:** ABS
- **Thread type:** Metric Tapered
- **Item weight:** 0.1 Kilograms

## Images

![Vent Systems 125 mm / 5" Inch - Air Vent Duct Connector Flange - Plastic Ventilation Pipe with Valve - Ducting Connector for Round Flexible or Straight Pipes, Ventilation System HVAC - Image 1](https://m.media-amazon.com/images/I/51vRHxaMp1L.jpg)
![Vent Systems 125 mm / 5" Inch - Air Vent Duct Connector Flange - Plastic Ventilation Pipe with Valve - Ducting Connector for Round Flexible or Straight Pipes, Ventilation System HVAC - Image 2](https://m.media-amazon.com/images/I/61W42N6pvFL.jpg)
![Vent Systems 125 mm / 5" Inch - Air Vent Duct Connector Flange - Plastic Ventilation Pipe with Valve - Ducting Connector for Round Flexible or Straight Pipes, Ventilation System HVAC - Image 3](https://m.media-amazon.com/images/I/61tjgYqE22L.jpg)
![Vent Systems 125 mm / 5" Inch - Air Vent Duct Connector Flange - Plastic Ventilation Pipe with Valve - Ducting Connector for Round Flexible or Straight Pipes, Ventilation System HVAC - Image 4](https://m.media-amazon.com/images/I/71kqSHstv8L.jpg)
![Vent Systems 125 mm / 5" Inch - Air Vent Duct Connector Flange - Plastic Ventilation Pipe with Valve - Ducting Connector for Round Flexible or Straight Pipes, Ventilation System HVAC - Image 5](https://m.media-amazon.com/images/I/71sW+QN0dqL.jpg)

## Available Options

This product comes in different **Size Name, Item Package Quantity** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Air Vent System
*by M***A on 18 March 2025*

Good price

### ⭐⭐⭐⭐⭐ Did the job!
*by P***N on 13 December 2024*

Did the job just fine!

### ⭐⭐⭐⭐ Super
*by M***A on 5 May 2025*

Yes

## Frequently Bought Together

- Vent Systems 125 mm / 5" Inch - Air Vent Duct Connector Flange - Plastic Ventilation Pipe with Valve - Ducting Connector for Round Flexible or Straight Pipes, Ventilation System HVAC
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**Shop now:** [https://www.desertcart.hk/products/362875100-vent-systems-125-mm-5-inch-air-vent-duct-connector](https://www.desertcart.hk/products/362875100-vent-systems-125-mm-5-inch-air-vent-duct-connector)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-01-30*