Aprilaire 4793 Maintenance Kit - Annual Maintenance Kit for Aprilaire 550 Humidifier Pads

In most home environments, this maintenance kit only needs to be replaced every 12 months. Includes:
  • 1 x 10 water panel 1 x 4226 feed tube 1 x 4231 yellow orifice 1 x 4004 inline strainer 1 x 4217 scale control insert 1 x 4218 water distribution tray 1 x 4223 drain spud
FITS THE FOLLOWING MODELS:
  • Aprilaire 550, 558