---
product_id: 411230710
title: "Vents 4 inch Black External Gravity Grille Air Vent Cover 100 mm Extractor Fan Back Draught Shutter Covers Ducting Tumble Dryer Bathroom Outside Wall Ventilation Hose Duct Grill"
brand: "vents uk"
price: "฿1755"
currency: THB
in_stock: true
url: https://www.desertcart.co.th/products/411230710-vents-4-inch-black-external-gravity-grille-air-vent-cover
store_origin: TH
region: Thailand
---

# Auto-closing gravity shutters Sleek black finish Weatherproof rain barrier Vents 4 inch Black External Gravity Grille Air Vent Cover 100 mm Extractor Fan Back Draught Shutter Covers Ducting Tumble Dryer Bathroom Outside Wall Ventilation Hose Duct Grill

**Brand:** vents uk
**Price:** ฿1755
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Vents 4 inch Black External Gravity Grille Air Vent Cover 100 mm Extractor Fan Back Draught Shutter Covers Ducting Tumble Dryer Bathroom Outside Wall Ventilation Hose Duct Grill by vents uk
- **How much does it cost?** ฿1755 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/411230710-vents-4-inch-black-external-gravity-grille-air-vent-cover)

## Best For

- vents uk enthusiasts

## Why This Product

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

## Key Features

- • **Sleek & Stealthy:** Matte black finish blends seamlessly with modern exteriors 🖤
- • **Smart Airflow Control:** Gravity shutters open only when needed, blocking backdrafts 🔄
- • **Hassle-Free Installation:** Push-fit duct connection for quick, secure setup—no fuss required
- • **Effortless Weather Defense:** Rainproof design keeps your home dry and protected 🌧️
- • **Versatile Ventilation Solution:** Perfect for bathrooms, kitchens, HVAC, and heat recovery systems

## Overview

The Vents 4 inch Black External Gravity Grille is a premium plastic, weatherproof vent cover featuring a 100mm duct size and three gravity-operated non-return flaps. Designed for outdoor use, it automatically opens to allow airflow when your extractor fan runs and closes to block rain, odors, noise, and pests when idle. Easy to install with push-fit ducting, it complies with UK Building Regulations and suits a wide range of ventilation needs including HVAC and heat recovery systems.

## Description

Vents 4 inch Black External Gravity Grille Air Vent Cover 100 mm Extractor Fan Back Draught Shutter Covers Ducting Tumble Dryer Bathroom Outside Wall Ventilation Hose Duct Grill

## Features

- Airflow operated gravity shutter is a rain and weatherproof vent finished in black colour. The item is made from premium quality plastic. The overall external dimensions of the grille - 155 mm x 155 mm with 4" / 100mm dia duct connection size for outdoor use.
- The grille has three non-return gravity flap outlets. The shutter works by extract air opening the blades to allow air to pass. When the extractor fan or ventilation system is not in use, the grille shutter flaps close automatically. This is designed to protect your ventilation duct from unpleasant odours, noises and to prevent backdraught air or rain penetration, and entry of objects, or vermin when the ventilation unit is not in operation.
- Simple and secure installation. Just push-fit duct and fittings together. If required, seal using a method of your choice (Popular options include Mastic Sealant Poly Cement or Tape).
- This gravity grille cover can be used as a part of a long ductwork run for a variety of purposes: whole house ventilation, conditioning ducting, passive ventilation, positive input, HVAC, Heat Recovery Systems and to cover Bathroom, Kitchen air conditioning fans.
- The Gravity Outlet is manufactured in compliance with the Building Regulations: Approved Document F.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | VENTS UK |
| Item Weight | 90 g |
| Package Dimensions | 15.2 x 15.1 x 4.4 cm; 90 g |
| Color | 100 Mm Black Gravity Grille |
| Material | Plastic |
| Plug Profile | Wall Mount |
| Special Features | Easy to Install |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![Vents 4 inch Black External Gravity Grille Air Vent Cover 100 mm Extractor Fan Back Draught Shutter Covers Ducting Tumble Dryer Bathroom Outside Wall Ventilation Hose Duct Grill - Image 1](https://m.media-amazon.com/images/I/51KG91N0n1L.jpg)
![Vents 4 inch Black External Gravity Grille Air Vent Cover 100 mm Extractor Fan Back Draught Shutter Covers Ducting Tumble Dryer Bathroom Outside Wall Ventilation Hose Duct Grill - Image 2](https://m.media-amazon.com/images/I/71o2JpXk9iL.jpg)
![Vents 4 inch Black External Gravity Grille Air Vent Cover 100 mm Extractor Fan Back Draught Shutter Covers Ducting Tumble Dryer Bathroom Outside Wall Ventilation Hose Duct Grill - Image 3](https://m.media-amazon.com/images/I/71foVBl+MHL.jpg)
![Vents 4 inch Black External Gravity Grille Air Vent Cover 100 mm Extractor Fan Back Draught Shutter Covers Ducting Tumble Dryer Bathroom Outside Wall Ventilation Hose Duct Grill - Image 4](https://m.media-amazon.com/images/I/71avjmTdkwL.jpg)
![Vents 4 inch Black External Gravity Grille Air Vent Cover 100 mm Extractor Fan Back Draught Shutter Covers Ducting Tumble Dryer Bathroom Outside Wall Ventilation Hose Duct Grill - Image 5](https://m.media-amazon.com/images/I/81y-gvgnz-L.jpg)

## Available Options

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

## Frequently Bought Together

- Vents 4 inch Black External Gravity Grille Air Vent Cover 100 mm Extractor Fan Back Draught Shutter Covers Ducting Tumble Dryer Bathroom Outside Wall Ventilation Hose Duct Grill
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- 100mm Pack of 2 Adjustable from 90-110mm Stainless Steel Pipe Clamp Secure Hose Clip Inline Duct Extractor Fan Connector Cooker Hood

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**Shop now:** [https://www.desertcart.co.th/products/411230710-vents-4-inch-black-external-gravity-grille-air-vent-cover](https://www.desertcart.co.th/products/411230710-vents-4-inch-black-external-gravity-grille-air-vent-cover)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-01-29*