COMBINATION CAVITY SLEEVE BLACK

Packed: 10

RVABUFCSBL

Combination cavity sleeve which fits into the back of the 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
Includes an integral wind baffle
Will also act as an extension to the underfloor vent
Made from high impact styrene
Regulations - BRE Digest 17, BRE Digest 262, Building Regulations C4, NHBC Standards 5.2 and BS 5250:2011 Control of Condensation in Building
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