4-Inch White External Hooded Cowl Ventilation Grill Cover with Backdraft Shutter - 100mm Plastic Cowled Vent Outlet Grille for Wall-Mounted Air Con Exhaust Hose Pipe Extension

This vent has a white hood with a removable single blade back draught shutter. It's designed for 100 mm (4 inch) round ducting and extractor air fan connections. The vent's outer dimensions measure 155 mm x 155 mm. Our vent cover is made of strong plastic that resists heat and UV rays. It follows building regulations and is easy to clean, perfect for indoors or outdoors. Made for great airflow. Easy to install on outer walls - just push the duct and fittings together. Cleaning is a breeze with the removable blade and duct cowling baffle. The baffled grille stops the wind from making noise and keeps out drafts when the fan is off. Gravity shutters protect against wind and rain. They have a flap to stop drafts, and when not in use, they close on their own to keep out air, birds, and rodents. The handy cowled grille is great for bathroom, kitchen, and wet room fans. It helps these fans and other devices send air outside through a wall., Manufacturer: NESVENT