The G935 Combination Cavity Sleeve fits into the back of Manthorpe’s G930 Airbrick to ventilate through a standard cavity or solid brick wall.
The unit can be stacked to create a 9 x 6 and 9 x 9 alternative, and telescopes to fit cavity widths of 50mm to 100mm, with further extension possible through the addition of extra product units.
The G935 also includes an integral wind baffle.
- Can be slotted and telescoped onto itself
- Will work with the G930 when stacked in 9″x6″ and 9″x9″ combinations
- Integral wind baffle
- Will also acts as an extension to the G960