This Aprilaire 4246 Humidifier Water Distribution Tray replacement is used in the Aprilaire 700, Aprilaire 760, Aprilaire 760A, and Aprilaire 768 Humidifier. This Aprilaire Water Distribution Tray is used with the Aprilaire 35 Water Panel Evaporator and the Aprilaire 4236 Humidifier Scale Control Insert to evenly distribute water within Aprilaire 760 Series Humidifiers.