Will the TurboKool unit work over an existing Fantastic Vent frame?

Yes, the TurboKOOL will fit over an existing Fantastic Vent frame.

You need to remove the existing vent lid, motor assembly and screen.

Use the existing frame mounted on the roof as a water dam/seal.

There are 2 bolts that go up through the front 2 corners of the vent opening , you will have to drill 2 - 3/8" holes in the plastic panel that holds the screen in place.

You can use our interior corner ceiling mount brackets or the TurboKOOL Roof Upper Body Base Assembly as a guide.