Which filters does the Aprilaire 500 take?

Humidifier pad 10, Humidifier pad 4792, Humidifier pad H510EZ1A.

Aprilaire 500 humidifier filters: 10

Humidifier pad

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

Shop the humidifier pad on Amazon Other models that use 10

Humidifier pad

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

Shop the humidifier pad on Amazon Other models that use 4792

Humidifier pad

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

Shop the humidifier pad on Amazon Other models that use H510EZ1A

1Humidifier pad10

Part numbers come from Aprilaire (source 1, source 2, source 3), 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

400MZ400Z440445445a448500a500K500KZ500m