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20 x Manthorpe Telescopic Adjustable Underfloor Cavity Wall Vents

Original price £94.99 - Original price £94.99
Original price
£94.99 - £94.99
Current price £94.99

Product Description



Manthorpe Telescopic Underfloor Vents


Pack of 20  


Designed to provide a clear airflow passage to the void underneath a suspended floor.

Telescopic vent Part number: G960.

Provides 6,600mm² of airflow.

The telescopic feature enables it to be adjusted between 3 and 5 brick courses.

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

Special grille included to prevent entry of vermin.

Extension sleeves and other fittings for this product available in our shop.

Meets NHBC requirements for the control of condensation in buildings.



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.


Regulations & Standards

BRE Digest 17.

BRE Digest 262.

Building Regulations C4.

NHBC Standards 5.2.

BS 5250:2011 Control of Condensation in Building.


Underfloor Vent Product Range

G960 Telescopic underfloor vent:  Steps 3 - 5 brick courses.

G961 Extension sleeve:  Steps 150mm vertically or 185mm rear horizontally.

G962 Remote void vent:  Fits onto the bottom of the G960 telescopic vent.

G935 Pair of cavity sleeves:  Fits to the front of the telescopic for a 120 - 280mm extra extension.

G930 Interlocking air brick ventilator: Fits to to front of the G960 & G935.