Humidifier Valve for Aprilaire 550 600 760 560 400 500M 700 400M 224 220 440 768

Uses pre-existing compression fitting on the outlet side. Electrically operated and uses 24 volts and 2.3 watts. Fits models 220, 224, 400, 400A, 400M, 440, 500, 500A, 500M, 550, 550A, 558, 560, 560A, 600, 600A, 600M, 700, 700A, 700M, 760 and 768.

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