Model 445 Series Parts
Replaceable components for Aprilaire Model 445 humidifiers. Distribution trays, scale control insert more. All parts are shipped in "single" carton quantities.
4093 Reservoir Liner - For Model 445
This is the liner that is in the bottom of the Models 445, 445A and 448. Also used with the reservoir divider, part number 4092.
4101 Reservoir Bolt Kit - For Model 445
Reservoir Bolt Kit for the models 445, 445A and 448 humidifiers. This attaches the bottom reservoir to the upper half of the humidifier. ...
4166 Replacement Knob - For Model 445
This is a replacement knob, which attaches to the front cover of the housing for the Models 445, 445A and 448. Two knobs are required for each uni...
4148 Impellor - For Model 445
This is the tiny propeller that attaches to the shaft of the pump assembly. It drives water up the hose (part number 4091) to the water distri...
4092 Reservoir Divider - For Model 445
This is the component which divides the reservoir liner, (part number 4093) and attaches to the bottom of your Model 445, 445A or 448 Humidifier.
4088 Float Only for Model 445, 445A & 448
This assembly is used only in the models 445, 445A and 448 to control the water flow into the reservoir. This is the square float that sits inside...
9960 Weather Station
Digital Weather Station. Operates on one AAA battery. Displays current temperature and relative humidity. Displays in Celsius or Fah...
4087 Float Assembly for Model 445
This assembly is used only in the models 445, 445A and 448 to control the water flow into the reservoir. It includes the float valve, float stem a...
4091 Hose and Nozzle - For Models 445, 445A & 448
This is the water feed tube and nozzle which attaches to the pump assembly. It then attaches to the water distribution tray, part number 4081 at t...
4081 Water Distribution Tray - For Models 440, 445, 445A & 448
These are the water distribution trays which distribute water evenly to all portions of the evaporative panel. They attach to the u-shaped scale c...