Just bought a 1999 Terry 725R, when the previous owner was demonstrating its features he said "It has a bathroom fan" as he clicked the button, the fan blade shattered. "I mean, it HAD a bathroom fan....
Also be sure to check to see which way the motor spins the fan to ensure that you get the fan with the proper blade angle in relation to the shape of the Hub portion of the fan blade. I changed out a broken fan blade assembly once that had a hub shaped like a jar lid. I had to take the fan blade assembly back because I couldn't just flip it over and I had to get one that had the proper blade angle.