Aprilaire 4788 Maintenance Kit for Aprilaire 400 series Humidifiers

Fits Aprilaire 400. 

Includes 1 x 45 water panel (2 pack) + 1 x 4335 feed tube + 1 x 4231 yellow
orifice + 1 x 4004 inline strainer + 1 x 4403 scale control insert + 1 x 4407 water distribution
tray + 2 x 4406 float assembly