Which filters does the Aprilaire 568 take?

Humidifier pad 35, Humidifier pad 4837.

Aprilaire 568 humidifier filters: 35

Humidifier pad

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

Shop the humidifier pad on Amazon Other models that use 35

Humidifier pad

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

Shop the humidifier pad on Amazon Other models that use 4837

1Humidifier pad35

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

550550a5585605608560a600600a600K600KZ