Kair Terracotta Cowled Outlet Grille 155mm External Dimension Wall Vent with 100mm 4 inch Round Rear Spigot and Wind Baffle Backdraught Shutter

Kair cowled vent with damper flap 155mm x 155mm external dimension with 100mm round rear spigot. Designed for use with 100mm / 4 inch round ducting. Just push-fit duct and fittings together. Cowl protects against driving rain and gusts of wind entering your property via the duct run. Damper flap can be closed to help reduce unpleasant odors, noises, or draughts flowing back through your duct. Note: The cowl comes with slightly bent sides. This is to enable easy fitting into the back plate. You will need to click fit it back into place., Weight: 0.31 Pounds, Manufacturer: Kair