Three-Way Plastic Side Wall/Ceiling Register in White 10 w X 6 h for Duct Opening (Outside Dimension is 11.75 w X 8 h)

Our metal vents were beginning to show signs of rust after 20 years with condensation forming on the metal from the cold air coming out of our A/C during the hot humid months. Purchased 4 of these to replace the rusting metal vents and the problem stopped. No more water dripping off the cold metal vents. AS these new vents are made out of a high grade plastic the only concern I have is the durability of the vent control switch. It appears to be the only weak link in the product. We dont adjust the airflow from the vents very often so I dont know how long the vent control switch will last. But for the price I can easily buy two of these for the price of one of the metal vents. I expect good service out of these new ones for at least 5 years.