Square Stainless Steel Air Vent Cover – 4", 5" & 6" Ventilation Outlet

Upgrade your home or workspace ventilation with this premium 304 stainless steel square air vent cover. Available in 4", 5", and 6" sizes with your choice of Black or Silver finish, this extract valve is engineered for durability, weather resistance, and efficient airflow management. Whether you're fitting it to a tumble dryer, cooker hood extractor, or any ducting system, this vent cover delivers long-lasting, reliable performance.

Key Features

304 Stainless Steel Construction: Scratch-resistant, corrosion-resistant, and built to last in both indoor and outdoor environments.
Arc Dome Design: Effectively prevents outdoor air from flowing back into your ducting system, maintaining proper airflow direction.
45° Inclined Louver: Angled slats channel water away and prevent rainwater from entering the vent — ideal for external wall installations.
Insect-Proof Filter: Built-in mesh guard keeps mosquitoes, dust, and debris from entering your ventilation system.
Universal Fit: Compatible with circular pipes and ducting hoses with diameters of 100mm (4"), 125mm (5"), and 150mm (6").
Wide Application: Perfect for tumble dryers, gas and electric dryer vent pipes, cooker hood extractors, bathroom exhaust fans, and a wide range of industrial ventilation uses.
Available in Two Finishes: Choose from sleek Silver or bold Black to complement your interior or exterior aesthetic.

Specifications

Material: 304 Stainless Steel
Colors: Black, Silver
4" Size: 18.5 × 12.2 cm (7.28 × 4.80 in)
5" Size: 18.5 × 12.5 cm (7.28 × 4.92 in)
6" Size: 18.5 × 13.0 cm (7.28 × 5.12 in)
Compatible Pipe Diameters: 100mm / 125mm / 150mm
Package Includes: 1 × Square Wall Air Vent Ducting Cover
Made in Mainland China

What It's Great For

This square vent cover is an essential component for any home or commercial ventilation setup. Use it to terminate dryer exhaust ducts, kitchen extractor hoses, bathroom exhaust fans, or any HVAC duct that exits through a wall. The back-draught-blocking dome and angled louvers make it especially well-suited for exterior wall applications where weather protection is critical.

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For general guidance on home ventilation and indoor air quality best practices, visit the U.S. EPA Indoor Air Quality: Ventilation in Homes resource.

Note: Due to monitor and lighting variations, colors may appear slightly different. Please allow minor size tolerances due to manual measurement.

Frequently Asked Questions

Q: What pipe sizes is this square stainless steel air vent cover compatible with?

A: This vent cover is compatible with circular pipes and ducting hoses with diameters of 100mm (4"), 125mm (5"), and 150mm (6"). Simply select the size that matches your existing ducting when ordering.

Q: Can this vent cover be used on an exterior wall?

A: Yes! The arc dome design prevents back-draught and the 45° inclined louvers are specifically designed to deflect rainwater away from the opening, making this cover well-suited for exterior wall installations on dryers, cooker hoods, and bathroom exhaust fans.

Q: Is the insect-proof filter removable for cleaning?

A: The built-in mesh filter is integrated into the vent cover design to block mosquitoes, dust, and debris. We recommend periodically checking and cleaning the filter to maintain optimal airflow through your ventilation system.

Q: What is the vent cover made of, and how durable is it?

A: This vent cover is crafted from 304-grade stainless steel, which is highly resistant to scratches, corrosion, and rust — ensuring long-lasting performance even in demanding indoor and outdoor environments.