• Flat weather protection ventilation grille, made of durable plastic • Nominal width of 125 mm, suitable for ducts of this size • Fixed outer slats that prevent rainwater from entering • Includes mosquito net with 2 x 2 mm holes to protect against insects • Installation by inserting the nozzle into the duct, with no visible screws • Can be used for both air intake and extraction • White surface and very flat design, only 5 mm thick • Ideal for DIY ventilation systems and chimney accessories