100mm-4" Rigid Fast fix Duct - White control_humidistat Airflow BV400 filter 2 x

Airflow BV400 filter 2 x G4 material 90000322

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• Fixing kit

2 or Outside the unit comes pre-assembled and is easy to install in both new build or when replacing an existing fan

Its Smarter because in contrast to traditional timers

100mm-4" Rigid Fast fix Duct - White control_humidistat Airflow BV400 filter 2 xFast fit duct system with white external grille Allows installation to be completed safely from inside of a building by using the push fit system. The seal between the external grille and the duct provides a weatherproof seal. It is installed by pushing through a 117mm diameter hole to locate the external grille to the outside of the building