Which filters does the Aprilaire 720A take?

Humidifier pad L HydroCore, Humidifier pad HYDRLH.

Aprilaire 720A humidifier filters: L HydroCore

Humidifier pad

Wicks harden with minerals and soak up less water over time.

Shop the humidifier pad on Amazon Other models that use L HydroCore

Humidifier pad

Wicks harden with minerals and soak up less water over time.

Shop the humidifier pad on Amazon Other models that use HYDRLH

1Humidifier padL HydroCore

Part numbers come from Aprilaire (source 1, source 2), 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

700KZ700m700MKZ700MZ700Z720720AKZ720M720MKZ760