looking to replace bathroom fan/vent

I would have to assume you are correct as I've never used the original fan in any of our rv bathrooms as they just stir the air around and make a lot of noise doing it.

johnm1 wrote:
with the majorly increased air flow that when he flushed the toilet it pulled the smell into the rig. Also needed to make sure there was a good water seal in the bowl or it would do the same without flushing.

That is likely to happen with a good exhaust fan no matter what the model. It even happens a little with the grossly inefficient little fan that came stock on mine.

I just installed one of the Maxxfan Deluxe in our rv and was using during a fairly heavy rain storm with no water coming through the vent. It was wonderful and moved a lot of air.

A friend installed a Fantastic Fan type in his bath and noticed, with the majorly increased air flow that when he flushed the toilet it pulled the smell into the rig. Also needed to make sure there was a good water seal in the bowl or it would do the same without flushing.

It wouldn't stop me from doing it but just something to keep in mind.

I replaced my bathroom fan with a Fan-Tastic Fan.

I run it in exhaust mode almost all the time.

If I want to cool off the bedroom I run the fan in exhaust and open the appropriate window or roof vent in the bedroom.

Same if I want to cool off the kitchen or living area.

Also works great to clean out the bathroom after certain events.

I found this on EBAY.

I bought the single speed for $40 a few years ago.

It is a bit noisy but works well; flaps the toilet paper.

Easy conversion from inside.

MaxxAir is a good choice or Fan-Tastic Fan (which is my choice).

Lots of options including remote control, and electric vent flap opening operation.
All are 12v. Just make sure you get the correct size to fit the hole you already have in your roof.