Vents 4 inch 100 mm Brown External Hooded Cowled Extractor Fan Kitchen Vent Wall Cover Plastic Outdoor Ventilation Grille with Non-Return Flap for House Industrial Ducting Pipe Grill

This brown cowled hooded wall vent baffle with removable single blade back draught shutter is suitable for use with 100 mm 4 inch round ducting and extractor air fan connections. The external dimensions of this cowled vent are 155 mm x 155 mm. Our air-cowled vent grille cover is manufactured of premium quality antistatic plastic that is temperature and UV-resistant. Suitable to use in compliance with part F building regulations. Wipe-clean durable design for indoor or outdoor use. Designed to provide optimum airflow performance. Easy and secure to install for outer wall mounting. Simply push-fit duct and fittings together. Smooth installation process and cleaning through the use of the removable blade and duct cowling baffle. The baffled grille has two advantages: it stops the wind from rattling the shutter and blocks back craft when an extractor fan is switched off. Gravity-operated back draught shutters supply exceptional protection against the effects of high winds and driving rain. The product includes a damper flap to help reduce backdrafts. When switched off, the grille shuts automatically with gravity and forms a barrier to stop air from entering the ventilation and protect your grille against birds and rodents. The multifunctional cowled grille is suited for bathroom, kitchen & wet room extractor fans. The grille can be applied as an important part of a ventilation system to terminate any extractor fans, air conditioning units, cooker hood, or duct to an external wall., Manufacturer: VENTS UK