I just bought a new solar vent for my trailer from North-Star Marine
for a very reasonable price, $60 for a stainless day/night model that
moves 1100 cubic feet/hour. The ABS model is even cheaper at $50...

Shipping was $15 for the first but would be free on a second unit. My
first one got busted by UPS, but upon me notifying North-Star they
immediately sent me a new one free of charge, letting me even keep the
old one (which I will fix...). I am very happy with the price, the
product, and especially their customer service. No, it's not a Nicro
(SunVent is the name), but at a third the price for a new one I think
it's a great deal.

http://www.northstaranchors.com/prod...vent-fans.html

I have no affiliation with North-Star, just a satisfied customer and
thought the info may be of interest to some of you in rasland...

-Paul