Storm protection for regulating the air flow in strong or gusty winds. Accessory for external air outlets ALD 10. Installation by inserting into the wall sleeve. Article: ALDS 10, Housing material: polystyrene, Membrane material: special silicone, Weight: 0.05 kg, Weight with packaging: 0.06 kg, Suitable for nominal width: 100 mm, Width: 120 mm, Height: 120 mm, Depth: 90 mm, Width with packaging: 200 mm, Height with packaging: 80 mm, Depth with packaging: 200 mm