AprilAire 4406 Float Assembly (1-Pack)
AprilAire 4406 Float Assembly (1-Pack)
For 400 Whole-House Humidifier

- Maintain peak performance of your Indoor Air Quality solution with genuine replacement parts and quality you can trust.
- Compatible Models: 400, 400A, 400K, 400M, 400MK, 400MZ, 400Z, 400KZ, 400MKZ, 4788
- Materials: Polypropylene
- Actual Measurements: 2.575H x 1.38W x 1.38D (inches)
INCLUDED IN THE BOX:
- (1) 4406 Float Assembly
Please note: There are two of these in your unit, but they are sold individually.
The AprilAire 4406 Float Assembly for Model 400 floats in the Scale Control Insert/Float Chamber to control the supply of water. When the water level is high enough, the right hand float turns off the water supply. As water evaporates and the float reaches the bottom, the electronic switch is activated.

AprilAire Is Healthy Air
AprilAire is on a mission to make homes healthy. We believe everyone deserves Healthy Air and envision a future with Healthy Air in every home.
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By The Numbers
70 years of filling homes with Healthy Air! Our mission has always been to make homes healthy, creating whole-house solutions inspired by the needs of our customers.
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Invisible Pollutants
Just because you can’t see airborne allergens, doesn’t mean they’re imaginary. Put your health and home first with AprilAire whole-house solutions.
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Healthy Homes
70 years of filling homes with Healthy Air! Our mission has always been to make homes healthy, creating whole-house solutions inspired by the needs of our customers.
