The G935 Combination Cavity Sleeve fits into the back of the 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,
• Telescopes to fit cavity widths of 50mm to 100mm, with further extension possible through the addition of extra units.
• Includes an integral wind baffle to help reduce drafts through the product whilst maintaining an effective airflow.
• Multiple units can be joined for deeper wall details

Priced per Box