6" (150mm) GRAVITY WALL GRILLE - BROWN. The main size usually refers to the fan (blade) sizes. Experience the Difference.
100mm White Louvred Wal Vent Cover, 4 Inch Extractor Fan Vent Cover for Bathroom Kitchen and Office Use, Air Brick Covers for Outside Walls for Tumble Dryer, Extractor Fan, Ventilation Systems
Extractor Fan Vent Cover White Wall Grille with Gravity Shutters for 100-125-150
Extractor Fan Vent Cover White Wall Grille with Gravity Shutters for 100mm Duct
Extractor Fan Vent Cover Wall Grille Gravity Shutter for 150mm Ducting - White
Extractor Fan Vent Cover Grey Wall Grille with Gravity Shutters 100mm | Manrose
Extractor Fan Vent Cover Brown Wall Grille with Gravity Shutters for 100mm Duct
