The Aprilaire maintenance kit 4785 includes everything you need to make your Aprilaire Model 350, 360 like new.
This 350 360 Series kit includes one each of the following items:
The Model Number on the Model 350 360 is located on the side with the 120v cord. The Aprilaire 350 & 360 was recently updated with the new 4655 humidistat, but has otherwise has remained the same.
Aprilaire Flow-Thru humidifiers have a solenoid with a small strainer filter in the body. These strainers should be inspected and cleaned when replacing the water panel. If the strainer becomes clogged the water pressure will tear it and pieces will jam the solenoid or loose pieces will block the orifice.