Parts introduction:This 4040 solenoid valve controls water flow to the humidifier to ensure proper humidity is delivered creating a more comfortable living environment. Specification: 24 volts, 50/60 Hz, 2.3 WattsEasy to Install: This humidifier solenoid valve is very simple to replace. You only need to use a screwdriver and a wrench to complete, installation takes only a few minutes.For safety, Please cut off the power supply and bring gloves before installationPremium Replacement Parts:The replacement part is made from high quality material and well-tested by the manufacturer. The design has been improved to have higher durability and stabilityBuy With Confidence: The 4040 solenoid valve supports 180 days return and exchange,We have a professional after-sales service team, if you have any question about this refrigerator handle, please feel free to contact us through amazon email or question and answers, we will solve your problem within 24 hours. Dont hesitate to solve your problem easilyReplace Numbers: NO.100006735, A2012-S118,B2035-S2,B2035-S5,B2035-S54,B2035-S55,B2015-S51,B2015-S54,B2015-S58,B2015-S65,B2015-S68, B2015-S85,B2015-S87, This humidifier valve solenoid compatible with Aprilaire humidifier models 400, 500, 600 and 700 series