100 mm White Plastic Gravity Wall Grille with Non-Return Shutter and 4 inch Round Spigot for Bathroom Kitchen Cooker Hood Extractor Fan Ducting Air Hose Wall Ventilation

• Durable white plastic ducting with built-in air inlet/outlet and gravity shutters. It measures 155 mm x 155 mm externally and has a 4-inch/100mm round male rear spigot for both indoor and outdoor applications.
• The flaps close by themselves when not needed, stopping bad smells, noise, or drafts from coming back through your duct. They work without springs to avoid any chance of breaking.
• Simple installation – effortlessly connect duct and fittings by push-fitting. Ideal for use as a Bathroom or Kitchen extractor fan, Hydroponics fan, or In-Line Extract Fan.
• This grill is useful in long duct systems for different things like ventilating the whole house, passive ventilation, bringing in fresh air, air conditioning, and heating systems.
• This product meets Part F Building Regulations and has been tested for airflow performance by BSRIA or BRE. It allows for 7200mm2 of free air, and the pressure drop is 10.94 Pa at 15 l/s, 18.59 Pa at 30 l/s, and 24.21 Pa at 60 l/s.

Our Durable White Plastic Ducting – your go-to solution for effective indoor and outdoor ventilation. With a user-friendly 4-inch/100mm round male rear spigot, it's a breeze to install for applications like bathroom and kitchen extractor fans or hydroponics setups. The built-in shutters keep things fresh by automatically closing when not needed, preventing bad smells, noise, or drafts. Plus, the push-fit design makes installation hassle-free for DIY enthusiasts. Tested for top-notch performance, it complies with Part F Building Regulations, offering 7200mm2 of free air. Elevate your ventilation game with our reliable and easy-to-use White Plastic Ducting – perfect for any space!