Faber STRATUS WH 36 Instructions D'installation page 7

Choose your ducting method
Ducted Venting Options Installation Non Ducted - Recirculation Option
Requires Ductless Accessory Kit
(purchased separately)
6 "
When used in recirculation mode,
6 "
To Reduce the Risk of Fire and
Shock use only conversion kit
Model FILTER1
7