Fuliko 4 Inch (Inner) Pack of 5 Brown Steel Round Soffit Air Vent Cover, Register Vent Deflector, HVAC Louvered Grille with Screen, Bathroom Office

This air return vent cover is specifically made to 3.94" diameter vent hole. External diameter: 6.49". Grill overall thickness 0.39". SCREWS NOT INCLUDED. It includes screen that your ducting from external . Manufactured from steel with external dimensions: Ø 5.12" Inches. with epoxy for cleaning and scratch resistance Product is designed to enable surface-mount installation for HVAC , making it appropriate for various projects. Crawl vent cover for furnace vent screens, air returns, exhaust air circulation, garages, basements, and more. Installation of the vent cover involves measuring and the hole with the cover opening, and it can be mounted any flat surface indoors or outdoors with 3 screws. The screws are NOT included. Moreover, the vent cover is made of steel, ensuring durability and rust resistance in harsh environments The to complete your ventilation , grilles serve dual function by facilitating ventilation, allowing fresh air in and expelling stale air, while also as protective barrier to debris from entering the and accumulation of dirt