9" x 9" Extendable Combination Cavity Wall Sleeve Vent with Buff Air Bricks Dry Verges For 4 Inch (100mm) Extractor

For 4 Inch (100mm) Extractor Fan Ducting

Compliant with BS 5440-2:2000

Width: 69mm

Grab Handle with shaped ends

5mm x 32mm

9" x 9" Extendable Combination Cavity Wall Sleeve Vent with Buff Air Bricks Dry Verges For 4 Inch (100mm) ExtractorExtendable Cavity Wall Sleeve Vent Buff Air Bricks 9" x 9" Inch Ventilation for heating and gas appliances with integral wind baffle. This vent is to increase the airflow in a room to eliminate condensation with this sleeve vent for heat producing appliances. Extends to suit wall thickness of 190mm 335mm. Additional G935 extension sleeves available in our shop. Finished with 9" x 9" louvre vent for internally and air brick for externally.