The Simple Fix That Stops Cold Drafts and Pests Entering Your Home
An unprotected external vent is an open invitation for cold drafts, rain, and pests to enter your home. The 150mm Cowled Duct Cover with Gravity Flap solves this with a precision-fit 150mm cover in weather-resistant white ABS plastic. The integrated gravity flap opens automatically when your fan pushes air out, then closes securely when the fan is off – blocking cold drafts, rain ingress, and unwanted visitors. Clean, professional appearance, low maintenance.
Standard 150mm diameter. White ABS – weather-resistant, rust-free, fade-resistant. The finishing touch for any ventilation installation.
Real-World Usage Situations
🚿 Scenario 1: Bathroom & Kitchen Extractor Fans
Bathroom and kitchen extractor fans require an external vent cover that allows air out when the fan runs but prevents backdraft when it’s off. The gravity flap does exactly this – opening under fan pressure, closing by gravity when the fan stops.
🏠 Scenario 2: New Build & Renovation
The 150mm standard size fits the most common residential ventilation duct diameter, making it the go-to choice for new builds and renovation projects. The white ABS finish blends cleanly with rendered or painted exterior walls.
🐞 Scenario 3: Pest Prevention
Open external vents are entry points for insects, birds, and small rodents. The gravity flap’s secure closure when the fan is off prevents pest ingress – a simple, effective solution to a common problem.
Key Features
- 📏 150mm diameter – standard residential fit
- 🔄 Gravity flap – auto-opens under fan pressure, closes when off
- 🌧️ Weather-resistant white ABS – rust-free, fade-resistant
- 🐞 Prevents pest ingress
- 💨 Blocks cold drafts and rain
- ✨ Clean, professional appearance
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