Model GBA107
Suitable for silicone joints Contents
2 x 220x 220mm square cover plates
2 x Model 107 (106mm) ventilators with louvre for internal
use and external use
Cover plates and ventilators are frosted
Model GBA108
Suitable for mortar joints Contents
2 x 220x 220mm square cover plates
2 x Model 108 (200mm) ventilators with louvre for internal
use and external use
Cover plates and ventilators are frosted
