ZonePak 3-Zone (3 9" dampers, 1 black/Red
Hose 25', 1 black/white Hose 25', 1 black/blue
hose 25', 3 cutout templates, 1 Transformer,
1 Zone control panel for 3-zones)
This system zones the plenum, so you will need a couple tees and then use one of these dampers on each branch of the tees. This will create three sections of plenum, one for each zone.