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Vertical Extension Sleeve

£3.26 Each
In stock

The vertical extension sleeve provides horizontal or vertical extension to a telescopic underfloor ventilator to accommodate different wall/cavity/brick courses etc. It fits between the upper and lower parts of the telescopic underfloor ventilator to accommodate a vertical step of morethan five brick courses.

Features and benefits

  • 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

Installation advice

  • Product should be fitted with the slotted end to accept the airbrick. Sleeves can also be slotted together to form longer sections if required
  • To improve joins between the telescopic underfloor ventilator and an accessory, seal using insulating tape or duct tape

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