I've got a 12v 50w DC fan in my hoop house. It's powered by a solar panel. It works fine for my situation, but it is very LOUD. I'd like to replace it but I can't find another fan with the same specs. Does anyone know a supplier for fans like mine? Thanks in advance for your help.

Is it a circulation fan or an exhaust fan?

How many cubic feet per minute are you looking to move?

Exhaust.
If I recall correctly it moves about 1200 fpm. I'd like to keep moving at least that much air, but would be happy to move more.

You probably have already seen these in your search, but I have heard good things about Snap Fans. They are not cheap, but they are supposed to be very well made and quiet.
https://snap-fan.com/

Thanks MoonShadows. I hadn't seen those. They look like what I want, but you are right that they are expensive. I'll have to talk to the boss about it.
Thanks again

Ah yes...the boss. I know that drill very well.