
This 4-inch gravity shutter provides a clean, discreet termination point for ventilation ducting through external or internal walls, finished in a versatile white colour that blends seamlessly with most interior and exterior surfaces. Designed specifically for use with 100mm extractor fans, it offers a fuss-free solution that completes wall installations with a professional appearance. The gravity-operated louvres respond automatically to airflow, opening when the fan is in operation to allow moisture-laden or stale air to escape, and closing securely once the fan ceases.
Engineered for practical functionality, this shutter serves as an essential component in maintaining indoor air quality while protecting the property from external elements. Its compatibility with both rigid and flexible 100mm round ducting makes it suitable for a wide range of ventilation applications, including bathrooms, kitchens, utility rooms, and commercial spaces. Beyond its primary ventilation role, the self-closing louvres provide effective barriers against backdraughts, rain penetration, and unwanted pests, ensuring that when the system is not active, the wall opening remains sealed against the outside environment.
Gravity-Operated Louvres: Open automatically with fan airflow and close securely by gravity when not in use.
Backdraught Prevention: Stops cold air and draughts from entering through the ventilation opening.
Weather Protection: Designed to resist rain penetration when the louvres are in the closed position.
Vermin Barrier: Closed louvres prevent insects, rodents, and other pests from entering via the ducting.
Wide Compatibility: Suitable for use with 4 inch/100mm extractor fans and round rigid or flexible ducting.
Clean White Finish: Neutral white colour complements most wall surfaces and interior décor.
Peace of Mind: Backed by a 1-year warranty.
| Specification | Details |
|---|---|
| Size | 100mm (4 inches) |
| Compatibility | 4 inch / 100mm extractor fans |
| Ducting Compatibility | 100mm round rigid or flexible ducting |
| Colour | White |
| Operation | Gravity shutter (passive louvres) |
| Warranty | 1 Year |
| Model | VENTGRILL |
| Weight | 0.20kg |
1. What is the difference between this white shutter and the black version?
The only difference is the colour finish. Both offer the same gravity-operated functionality, compatibility with 100mm fans and ducting, and protection against backdraught, rain, and vermin.
2. Can this shutter be installed on an exterior wall?
Yes, it is designed for installation through external or internal walls and provides effective protection against rain penetration and draughts.
3. Will this work with my existing flexible ducting?
The shutter is compatible with both rigid and flexible 100mm round ducting, making it suitable for most standard 4-inch ventilation installations.
4. Does the shutter require any electrical connection?
No, it is a passive gravity-operated unit that requires no electrical wiring. The louvres open and close purely in response to airflow from the connected extractor fan.
5. Is this shutter suitable for use in a kitchen?
Yes, it is suitable for kitchen extractor installations as well as bathrooms and other areas where ventilation ducting terminates through a wall.