GV TT13 Adaptor

Description

Size: 125mm & 150mm
Suitable: Air Recovery unit

It ensures that the roof underlay is cut and that there is a continuous permanent weatherproof path from the roof void to the outside without impairing the weatherproof function of the structure, in accordance with BS 5250.

Supplied seperately and snap-fits to the underside of the ventilator on site before the ventilator is installed.