This Aprilaire 4235 Humidifier Water Feed Tube replacement is used in the Aprilaire 700, Aprilaire 700A, Aprilaire 700M Humidifier, Aprilaire 760, Aprilaire 760A, Aprilaire 768 Humidifier, and other compatible Aprilaire 700 Series humidifier models. This Aprilaire 4235 water feed tube is used with the Aprilaire solenoid valve to deliver water to the Aprilaire distribution tray.