Honeywell PRESTIGE THX9321 - Ventilation Optional Accessory; Vent Boost Device (Coming Soon)

Prestige _ THX9821/THX9421 Thermostat
Optional accessories
Vent Boost (coming soon)
This handy device mounts anywhere in your home
(typically bathroom or kitchen) for convenient on
demand ventilation. Select 20, 40 or 60 minutes as
desired for increased ventilation.
33 69-2493EFS--01