Ø 100mm / 4 inch Gravity Grille - Ducting Air Vent with Round Spigot and Non-Return Gravity Shutters - ABS Plastic Grey

Ducting Air Inlet / Outlet with Gravity Shutters | 150x150mm External Dimension with 4 inch / 100mm Round Male Rear Spigot for Connecting to Round Ducting and Extractor FansHigh-quality ABS Plastic Construction Resistant to Weather Conditions, UV Rays, and Corrosion, Ensuring Long-lasting PerformanceBuilt-in Insect Screen, Effectively Prevents Insects and Other Unwanted Objects from Entering Your Space | Non-return Gravity Shutters Enhance Functionality by Allowing Airflow in One Direction and Preventing BackdraftSuitable for both Indoor and Outdoor Use, Providing Versatile Ventilation Solutions for Different Environments | Modern Design Enhances the Aesthetic Appeal of any SpaceEasy Installation with Pre-drilled Mounting Holes, Allowing for Quick and Secure Attachment | Lightweight and Compact, Making It Convenient to Handle and Transport.