6 inch Light Weight Push Fit Extractor Fan Gravity Flappy Grill External Wall Air Vent Ventilation Plastic 5" Will fit All 150mm Universal Pipes

White Plastic Ducting Air Inlet / Air Outlet with Gravity Shutters - 6 inch / 150mm round male spigot on the back of the grille for indoor or outdoor use. Non-return shutter flaps close automatically when not in use. Stops unpleasant odours, noises, or draughts flowing back through your duct. Gravity flap - no need for springs that could break. Easy to install, just push-fit duct and fittings together. Perfectly suited Bathroom or Kitchen extractor fan, Hydroponics fan or In-Line Extract Fan. This grille can be used as a part of a long ductwork run for a variety of purposes including whole house ventilation, passive ventilation, positive input, air conditioning, HVAC, and Heat Recovery Systems. Suitable to use in compliance with Part F Building Regulations., Manufacturer: Fantronix