Collar to connect spiral or spiral ducts and ventilation ducts, flat flanges, ceilings or walls
| Manufacturer | CasaFan |
| Nominal size | 80 mm |
| Board | 6 mm |
| Material | Galvanized sheet steel |
| Match | for spiral or spiral ducts |
| Seal | Double lip seal made of age-resistant EPDM rubber |
| Execution | DIN EN 12237 tightness class D |
| Deploy | For connection to ventilation ducts, ceilings or walls using glazing tape and (self-drilling) screws or rivets. Also suitable for connecting flat flanges to spiral or spiral ducts. |
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