Maxx Air has models that blow DOWN onto the roof, can be open and operational during a rain storm
Fantastic fan for many years said DO NOT PUT A COVER OVER IT so you had to close in the rain,,, Now they sell a cover.. So I'm not sure there is a difference worth mentioning.
ONe difference though. For many years the most fantastic thing about Fantastic fan was the customer support.. But last year (or the year before not sure) THe company was sold to, as I recall, the same company that makes A&E, and Dometic, and several other RV brands, and this company is not big on Customer Support. Though at least initally FF was not affected in this way. I do not know today.
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times