Recommended Maximum Tube Run

Solatube 160 DS (10 in/250 mm) Brighten Up® Series

20' (6m)

Solatube 290 DS (14 in/350 mm) Brighten Up® Series

30' (9m)

Solatube 330 DS and 750 DS (21 in/530 mm) SolaMaster® Series

50' (15m)