4040 Humidifier Solenoid Valve, for Aprilaire Humidifier Accessories 400 500 60

It is easy to install：This humidifier solenoid valve is easy to install,You only need a screwdriver and wrench to perform repairs. COMPATIBLE WITH APRILAIRE MODELS ：The 4040 solenoid valve is compatible with Aprilaire 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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