We take pride in our upgraded ventilation grille. Constructed from Stainless Steel and further reinforced with a fine mesh, this grille is efficient against invasion of pesky insects and small animals. Designed especially for durability, the grille is suitable for indoor and outdoor use, making it perfect for ducts, hoses, tumble dryers, garages, cooker hoods and vents. Our ventilation grille comes with movable fins that prevent water from entering, contributing its weather capabilities. It also includes a round rear connection, introducing an innovative measure against backflow of water. Perfect for not just outdoors but can be effective indoors particularly for bathrooms, kitchens, garages, cooker hoods and vents. Our ventilation grilles have the universal dimension of diameter making it a perfect match for ventilation ducts of similar size. This ensures your ventilation duct openings are shielded against rainwaters' penetration while retaining the essence of good ventilation. Ease of installation is one of our . The installation can be completed in minutes. Just insert the grille into the ventilation duct or pipe, secure it with 4 screws to the wall, and you're set. It's that simple! The actual product may have slight color differences or differences, which does not affect use. Specifications: 100mm Colour:Silver Material:Stainless steel Panel size::About 184mm Package Contents: 1 set x Ventilation Grille Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.