Type
1
400mm of 50mm Ø pipework attached by ridged push-fit
to outer wall aperture frame with clip-on fascia grille. Pipework
at 30° downward angle to the horizontal.
Fascia grille 88 x 118mm.
Type
2
Cranked telescopic unit with integral moisture inhibitor and
brick grille.
Single unit fully contracted 250mm and fully extended
404mm. Extension pieces add maximum 200mm each either vertically
or horizontally.
Brick grille 65 x 108mm.
Type
3
Cranked telescopic unit with full size airbrick fully
contacted 250mm, fully extended 375mm.
Vertical extension sleeve adds 150mm. Duct adaptor available
for horizontal extension.
For
through-wall ventilation a cavity sleeve with full size airbrick
is available.
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