TIMCO 1201 Timloc Telescopic Underfloor Vents for 3 5 Courses Black Pack of 20

These Telescopic Underfloor Vents are ideal for Timloc's Airbrick and ensure optimal airflow beneath suspended ground floors. They adjust vertically for brick courses between 225mm and 375mm (3 to 5 courses), with a minimum cavity width of 50mm. The front grille prevents vermin entry and reduces rain ingress during strong winds. Made with UV-stabilised polypropylene, they're sturdy, tough, and resistant to deterioration and decay. Each vent offers a ventilation area of 6000mm and comes in a sleek black finish. This product is manufactured to BS EN ISO 9001 and 14001 standards. Sold in packs of 20, the vents measure 220mm x 225mm as standard and extend to 220mm x 375mm.. Timloc Telescopic Underfloor Vent Up to 5 Courses - Box of 20 Polypropylene

Adjustable ventilator to provide ventilation beneath suspended ground floors up to 5 brick courses. With incorporated grille to prevent vermin entry. Vertical height adjusts to suit between 3 and 5 brick courses (225 mm-375 mm) with a minimum cavity width of 50 mm Horizontal and vertical extension accessories available Equivalent of 6000 mm2 per unit, Manufacturer: Timloc