Automatic Shutter - Broan 433 (433)
This shutter covers a automatic vent fan used to ventilate the crawl space under our house. The fan is on timer and operates for approximately 8 hours/day. Previously the shutters I have used were produced by the fan manufacturer and were plastic. They only worked for about 8 months and then fell apart. I had replaced them 5 times. The Broan shutter is metal (aluminum) and appears to be well made and operates smoothly. So far I will give it 5 stars..... We will see how long it will last.
Invested in backup
When we had plastic ones all we heard was bang bang bang. Now we hardly hear these. We like them so much we invested in back up in case these go bad.
Fit was perfect and shuts great....used this with the gable mounted
Broan fan....great combination. Used minimal caulk for a nice seal to the