Outside air outlet for draft-free, decentralized home ventilation. Flap type: Manual (0% or 100% position). Very good insulation. Flat, visually appealing design. Good air distribution. No electrical connection necessary. Packaging unit ALD 125: inner part made of plastic, dust filter ISO Coarse 30% (G2), wall sleeve up to 500 mm with storm protection and sound insulation, manual flap, square outer grille made of plastic including fly screen. Packaging unit ALD 125 VA: inner part made of plastic, dust filter ISO Coarse 30% (G2), wall sleeve up to 500 mm with storm protection and sound insulation, manual flap, round outer grille made of stainless steel including fly screen. Accessories: Replacement filter ALDF 125/160 G2 or ALDF 125/160 G3.Article: ALD 125, Air direction: Ventilation, Max. volume flow: 30 m3/h, Installation location: Wall, Grille material: Plastic, Housing material: Plastic, Color: pure white, similar to RAL 9010, Weight: 1.09 kg, Weight with packaging: 1.35 kg, Filter type: Dust filter, Filter class: ISO Coarse 30% (G2), Flap type: manual, lockable, Nominal width: 125 mm, Width: 159 mm, Height: 159 mm, Depth: 572 mm, Width with packaging: 170 mm, Height with packaging: 180 mm, Depth with packaging: 590 mm, Ambient temperature: 60 °C, Rated max. Element standard sound level difference Dn,w: 47 dB