Vertical Extension Sleeve

To provide vertical extension to the Timloc telescopic underfloor ventilator to accommodate different wall, cavity and brick courses.
Always use in conjunction with a Timloc telescopic underfloor ventilator and extension accessories.
Fits externally over the upper and lower parts of the telescopic underfloor ventilator to accommodate a vertical step of more than 5 brick courses.
Features
-Units can be multi stacked for greater height