(W)150mm Vents

Polypipe 4902BK Cowled Extractor Fan Grille with Damper 100mm / 4 Inch (Black)

100mm Gravity Outlet Black 4" Spigot

125mm External Brown Louvered Grille Vent (5" Spigot).

125mm External White Gravity Grille Vent (5" Spigot)

125mm External Black Louvered Grille Vent (5" Spigot).

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

125mm External Black Gravity Outlet (5" Spigot)

Polypipe 4902W Cowled Extractor Fan Grille with Damper 100mm / 4 Inch (White)

Domus F4904BK External Ventilation Grille with Insect Screen for 100 mm / 4 Inch Diameter Duct (Black)

Polypipe 4902B Cowled Extractor Fan Grille with Damper 100mm / 4 Inch (Brown)

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

Domus F4904W External Ventilation Grille with Insect Screen 100 mm/4 Inch (White)

Domus F4904T External Ventilation Grille with Insect Screen 100 mm/4 Inch (Terracotta)

100mm External Brown Louvered Grille Vent (4" Spigot)

Domus F4904B External Ventilation Grille with Insect Screen 100 mm / 4 Inch (Brown)

125mm Beige Louvered Grille Vent (5" Spigot)

100mm Gravity Grille Beige 4" Spigot

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

100mm Gravity Grille Green 4" Spigot

100mm Beige Louvered Grille Vent (4" Spigot)

External 125mm Gravity Outlet Terracotta (5" Spigot)

125mm Terracotta Louvered Grille Vent (5" Spigot)

Black 125mm 5" Cowl with Gravity Flap