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AprilAire H510EZ1A Humidifier Filter / Water Panel Assembly Replacement Kit for Models: 500, 500A, and 500M



  • Genuine AprilAire Replacement Filter: This water panel assembly replacement was designed and made in the USA by AprilAire to fit Whole-House Humidifier Models 500, 500A, and 500M
  • All-in-One Kit: No mess. No cleanup. Just fast, simple replacement of the water panel assembly to keep your AprilAire Whole-House Humidifier working like new.
  • Healthy Humidity: By replacing the water panel assembly in your humidifier, you can enjoy the benefits of optimal humidity levels, including lower incidence of respiratory infections, minimized formation of bacteria and viruses, and preservation of household items susceptible to dry conditions
  • Perfect Fit: The water panel in this assembly measures 10″ H x 9.75″ L x 1.75″ W for AprilAire Whole-House Humidifier Models 500, 500A, and 500M


AprilAire makes maintenance easier than ever with the Humidifier Filter / Water Panel Assembly Replacement Kit for AprilAire Whole-House Humidifier Models 500, 500A, and 500M. This all-in-one replacement kit is fully assembled for fast, simple maintenance that keeps your humidifier running like new. No need to remove scale buildup or manually clean any parts of the water panel assembly, just remove and discard the old one and slide in the replacement kit to refresh the performance of your AprilAire Whole-House Humidifier.

A properly maintained water panel helps deliver balanced humidity levels throughout your home, creating an environment where dust mites, viruses, and other asthma and allergy triggers are less likely to thrive. You’ll find detailed instructions on the box with helpful visuals and step-by-step guidance to make the process a breeze. AprilAire recommends replacing the humidifier filter and water panel assembly once annually.


  • 4640 Scale Control Insert
  • 4331 Distribution Tray
  • 10 Water Panel



  • Compatible Models: 500, 500A, 500M
  • Materials: Aluminum, Synthetic Fiber, Plastic
  • Actual Measurements: 11.35H x 2.88W x 10.7D (inches)

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