Plastic Gravity Shutter - 150mm - Brown

AirTech-UK Gravity Grille Grey 155mm External with 100mm - 4 inch Round Rear Spigot and Not-Return Shutters Ducting Air Vent

Plastic Gravity Shutter - 150mm - Terracotta

100mm Gravity Grille Green 4" Spigot

Plastic Gravity Shutter - 150mm - Light Grey

Black Gravity Grille 100 mm / 4" External Ducting Air Vent with Round Spigot and Non-Return Gravity Shutters for Extractor Fans

AirTech-UK Gravity Grille Black 155mm External with 100mm - 4 inch Round Rear Spigot and Not-Return Shutters Ducting Air Vent

Stainless Steel Gravity Shutter - 150mm

Plastic Gravity Shutter - 150mm - Black

AirTech-UK Gravity Grille White 155mm External with 100mm - 4 inch Round Rear Spigot and Not-Return Shutters Ducting Air Vent

White Gravity Grille 150 mm / 6" External Ducting Air Vent with Round Spigot and Non-Return Gravity Shutters for Extractor Fans

Blauberg Plastic Gravity Shutter Grille with Round Read Spigot - 100mm - Light Grey

White Gravity Grille 100 mm / 4" External Ducting Air Vent with Round Spigot and Non-Return Gravity Shutters for Extractor Fans

Kair Black Gravity Grille 155mm External Dimension with 100mm - 4 inch Round Rear Spigot and Not-Return Shutters Ducting Air Vent

Black Gravity Grille 125 mm / 5" External Ducting Air Vent with Round Spigot and Non-Return Gravity Shutters for Extractor Fans

White Gravity Grille 125 mm / 5" External Ducting Air Vent with Round Spigot and Non-Return Gravity Shutters for Extractor Fans

AirTech-UK Gravity Grille Terracotta 155mm External with 100mm - 4 inch Round Rear Spigot and Not-Return Shutters Ducting Air Vent

Plastic Gravity Shutter - 150mm - White

Blauberg Plastic Vented Back Draught Air Gravity Shutter Ventilation Grille - 125mm Brown

Black Gravity Grille 150 mm / 6" External Ducting Air Vent with Round Spigot and Non-Return Gravity Shutters for Extractor Fans