Description
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Consists of two plastic tubes that slide into one another. For flush-mounted installation, suitable from 260 to 500 mm. External wall closure via frame with five slats as an automatic closing flap or via frame with fixed grille insert. All parts made of plastic, included in delivery. ,
| Property | Value |
| Suitable for duct fans: | yes |
| Suitable for residential fans: | yes |
| Type of mechanical accessories: | other |
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