Ventilation Grille Diameter 100 mm Anthracite Exhaust Hood Ventilation with Backflow Flap Plastic Exhaust Air Supply Air Hood

EUROPLAST Ø 100mm / 4'' Cowled Duct Cover with Gravity Flap - Ventilation Grille with Rain and Wind Protection - External Air Vent Covers - ABS Plastic Anthracite

H&C VENT Anthracite Ventilation Gravity Grille 153mm with 100mm 4 inch Connector│ Air Vent Covers with Flaps and Insect Protection │ Extractor Cover for Duct Pipe, Wall, Window │ Inside and Outside