Cowled ventilation grille with anti-backdraught damper shutter. Concealed fixing points. Fixing screws / rawlplugs are not supplied with this item.
2 x National Ventilation F4904B External Ventilation Grilles 100 mm 4 Inch Brown
6 x External Ventilation Grille Cover Outlets for Extractor Fan 100 mm Black
External Ventilation Grille Cover Outlet for Extractor Fan 100 mm / 4 Inch Black
External Ventilation Gravity Grille 4" 100mm
External Ventilation Grille Cover Outlet for Extractor Fan 6inch/4Inch (CUT OUT)
External Wall Vent Grille Cowled Louvred Cover 100mm 125mm 150mm 4" 5" 6" Duct
