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The Aprilaire 4040 is a humidifier solenoid valve that is designed to work with all Aprilaire humidifiers except commercial models and specific residential models 110, 112, 330, 350, 360, 445, and 800. The valve is electrically operated, using 24 volts and 2.3 watts, in order to turn water on and off to your humidifier. This does not involve regulating the volume or amount of water which is done by a separate item. Product manufacturer recommends that any wiring on your humidifier be completed by a professional contractor. Has new, pre-installed strainer located in the inlet side of the valve in order to capture clog-inducing sand and dirt. Uses existing compression fitting for outlet side. Order today!
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