About this item PERFECT FIT ：Humidifier Solenoid Valve 4040 Suitable for Aprilaire Humidifiers | Part No. B2015-S85, B2017-S85， Whole House Humidifiers 24 volts | 2.3 Watts | 60 Hz. 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. Please Note ：This part is not suitable for these models 330, 445, 110, 112, 350 and 360. QUALITY MATERIALS：This solenoid valve is made of solid brass body and stainless steel seat. It is sturdy and durable and has been strictly tested by the manufacturer.was designed to optimize the performance of your for Aprilaire Whole House Humidifier .
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