4" 5" 6" Square Stainless Steel Air Vent Extract Valve Cover

Stainless Steel Square Air Vent Extract Valve — 4", 5" & 6" Sizes

Upgrade your home or commercial ventilation system with this premium 304 stainless steel square air vent cover. Available in 4-inch, 5-inch, and 6-inch duct sizes, and finished in sleek Black or Silver, this wall-mounted extract valve combines durability with smart design to keep your space fresh, dry, and pest-free.

Made in Mainland China.

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 consistent airflow direction.
• 45° Inclined Louver Blades: Angled slats direct water away and prevent rainwater from entering the duct — ideal for exterior wall installations.
• Insect-Proof Filter Mesh: Built-in mesh barrier keeps out mosquitoes, dust, and other airborne debris.
• Universal Duct Compatibility: Fits circular pipe/ducting hose diameters of 100mm (4"), 125mm (5"), and 150mm (6").
• Wide Application: Perfect for tumble dryer vent pipes, cooker hood extractors, gas and electric dryers, bathroom and kitchen exhaust fans, and a broad range of industrial ventilation uses.

Specifications

• Material: 304 Stainless Steel
• Colors Available: Black, Silver
• Package Includes: 1 × Wall Air Vent Ducting Cover
• Battery Required: No
• Wireless Functionality: No

Why Choose This Vent Cover?

Whether you're replacing a worn-out vent grille or installing a brand-new ventilation outlet, this square extract valve delivers professional-grade performance. The stainless steel build resists the elements outdoors while the modern square profile suits contemporary interior and exterior aesthetics. The back-draft prevention and rain-blocking louver design make it an especially smart choice for laundry rooms, kitchens, and bathrooms.

You May Also Like

• 1-1/4" Adjustable Washbasin Siphon Trap | Leak-Proof Silicone
• 1-Inch Threaded Brass Ball Valve – Water, Gas & Oil Flow Control

For guidance on proper ventilation standards and indoor air quality, visit the U.S. EPA Indoor Air Quality & Ventilation resource.

Note: Due to monitor calibration differences, displayed colors may vary slightly from the actual product. Please allow minor size tolerances due to manual measurement.

Learn more: Scaly-foot gastropod

Frequently Asked Questions

Q: What duct pipe sizes does this stainless steel square air vent cover fit?

A: This square extract valve is available in three sizes to fit standard circular ducting hose diameters: 100mm (4 inch), 125mm (5 inch), and 150mm (6 inch). Always match the vent cover size to your existing duct pipe diameter for a secure, airtight fit.

Q: Can this square vent cover be used for an outdoor wall installation?

A: Yes. The 304 stainless steel construction is corrosion-resistant and weather-resistant, making it fully suitable for exterior wall mounting. The 45° inclined louver blades channel rainwater away from the duct opening, while the arc dome design prevents outdoor air from back-flowing into your ventilation system.

Q: Is this vent cover compatible with tumble dryer exhaust hoses?

A: Absolutely. This extract valve is specifically designed to work with tumble dryer vent pipes and hoses, as well as cooker hood extractors, bathroom and kitchen exhaust fans, gas and electric dryers, and general industrial ventilation applications — making it a versatile solution for most residential and commercial ducting needs.

Q: Does the vent cover include an insect or pest barrier?

A: Yes. Each cover includes a built-in insect-proof filter mesh that blocks mosquitoes, dust, and other airborne debris from entering your duct system, helping to maintain cleaner air circulation throughout your home or workspace.