Address: Melbros House, Great Central Way, Rugby, Warwickshire, CV21 3XH.


Phone: 01788 866945



Mon - Fri: 7.30am - 5pm
​​Saturday: 7.30am - 1pm

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© 2020 by Melbros Ltd. Company Reg 1938665. VAT Reg No 420820590


Prices include VAT

Periscope Telescopic Wall Underfloor Vent 9" x 3"

SKU: 10001059

The telescopic underfloor vents provide a clear airflow passage through the wall into the voids below suspended concrete and timber floors. The telescopic feature enables the product to adjust the ventilation channel vertically within the cavity, helping to meet the Building Regulations Part C requirement for ventilated floors.


The Telescopic Underfloor Void Ventilator is designed to provide a clear airflow passage to the void underneath a suspended floor.


The telescopic feature enables the ventilator to adjust vertically between three and five brick courses.


The right airflow can be achieved when the ventilator is used with a Manthorpe G930 Airbrick.


The aperture can also accept a standard clay airbrick, although the airflow is reduced.


Key Features

  • 6,600mm2 airflow
  • Allows ventilation to an underfloor void
  • Allows a 3-5 course stagger
  • Additional depth and cavity span available with extension sleeve