Black Polypropylene Ventilation

Kair Black Louvred Wall Vent Grille 183mm External Dimension with Flyscreen and Round 150mm - 6 inch Rear Spigot

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

Kair Black Louvred Grille 155mm External Dimension with Round 100mm - 4 inch Rear Spigot Wall Ducting Air Vent

Kair 204mm x 60mm Airbrick With Surround - Black

System 220x90 Double Airbrick Adapter With Fitted Grilles - Black

Slate Vent Pitched Roof Ventilator Grey Multi Spigot Connection 100-125-150mm

150mm Black Louvered Grille Vent (6" Spigot)

Kair Black Louvred Wall Vent Grille 155mm External Dimension with Flyscreen and Round 100mm - 4 inch Rear Spigot

Kair Black Airbrick Grille with Surround for 204mm x 60mm Ducting

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