The Aprilaire maintenance kit 4750 includes everything you need to make your Aprilaire Model 700, 700A, 700M like new.
This 700 Series kit includes one each of the following items:
The Model Number on the 700 Series is located on the right side of the base assembly. The Aprilaire 700 Series includes the models 700 700A 700M 760 768. The various 700 models simply have different humidistats.
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.