| Type | Wall box |
| Brand | But |
| comparison result | TOP Productstest-vergleiche.com1,9good |
| Manufacturers | But |
| Material | Plastic |
| steering | Air pressure |
| Shutter | Gills |
| especially suitable for | Old and new buildings |
| Backflow flap | Ja |
| Tube ø | 150 mm |
| Core hole ø | 155 mm |
| Installation depth | 42 ?? 62 cm |
| External grille | kA |
| Features | for thick walls |
| Benefits |
|
| Conclusion | Wall box with backflow flap, telescopic tube and external blind |
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