Description

Adjustable ventilator for ground floors upto 7 brick courses.

Use

• To provide ventilation below suspended ground floors

Features and Benefits

• Telescopic and adjustable for a step of 5, 6 or 7 brick courses
• Suited for 50-150mm cavity width construction
• Free area of 8000mm2 per unit when installed without 1201AB airbrick
• Free area of 6500mm2 per unit when installed with 1201AB airbrick
• Equivalent area of 6170mm2 per unit when installed with 1201AB airbrick
• Special grille included to prevent entry of vermin
• Durable, robust and totally resistant to decay