I am selling automotive cooling fans. Want to get rid of your viscous fan? This is the way to do it. You can buy the universal mounting strips through Amazon for about $7 a set. These are high output fans that worked when taken out of service. I don't need them in my garage anymore. Trades are welcome too.
11"-12" $20 each
10" $15 each
11"-12" $20 each
10" $15 each