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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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