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AprilAire 4403 Scale Control Insert

AprilAire 4403 Scale Control Insert

For 400 Whole-House Humidifier

$22.75 USD
$22.75 USD
Low stock
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  • Maintain peak performance of your Indoor Air Quality solution with genuine replacement parts and quality you can trust.

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.

  • 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.

  • 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.

  • 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.