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Aprilaire 720 humidifier humidifier pad

Aprilaire 720: the humidifier pad is part L HydroCore. Source: Aprilaire, checked November 6, 2026.

1Humidifier padL HydroCore

Part numbers come from Aprilaire (source), checked November 6, 2026. Amazon buttons open a search for the part number; we may earn a commission.

Where the model number is

On a label on the base, often under the water tank.

Other Aprilaire humidifiers

700a700KZ700m700MKZ700MZ700Z720A720AKZ720M720MKZ