Aprilaire 4040 Humidifier Solenoid Valve

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Aprilaire 4040 Humidifier Solenoid Valve 


  • Genuine Aprilaire Part No. 4040 24 Volt Solenoid Valve
  • Replacement Solenoid Valve for Aprilaire Humidifier Models: 220, 224, 400, 440, 500, 550, 558, 560, 568, 600, 700, 760, & 768
  • The #4040 Soleniod valve includes a new inline strainer



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