Humidifier pad
Wicks harden with minerals and soak up less water over time.
Aprilaire 220: the humidifier pad is part 10. Source: Aprilaire, checked November 6, 2026.
Wicks harden with minerals and soak up less water over time.
1Humidifier pad10Part numbers come from Aprilaire (source), checked November 6, 2026. Amazon buttons open a search for the part number; we may earn a commission.