Underfloor Vent Horizontal Rear Extension +100mm

Fits into the lower rear opening of the telescopic underfloor ventilator to accommodate cavity widths between 50-150mm – or internal walls of more than 100mm thickness, up to a maximum of 200mm.

• Does not restrict airflow through the main telescopic underfloor ventilator

• Purpose-made accessories eliminate the need for on-site modifications

• Lightweight and easy to handle

• Durable and totally resistant to decay