• GeneralAire GA4040 Humidifier 24V Solenoid Valve

      The GeneralAire GA4040 is a solenoid valve for your GeneralAire humidfier. This is a key component to keeping your humidifier working at its best and is a genuine OEM part. $41.99
    • Aprilaire 4040 Humidifier Solenoid Valve - 24 Volt

      This Aprilaire 4040 Humidifier Solenoid Valve replacement is used in all Aprilaire humidifier models except for commercial units and residential models Aprilaire 110, Aprilaire 112, Aprilaire 330, Aprilaire 350, Aprilaire 360, and Aprilaire 445. This Aprilaire 4040 Solenoid Valve is the humidifier component that allows the water to enter your April ...  More $48.7
    • Aprilaire Humidifier Water Solenoid Valve A2012-S118 24/60 VAC

      FROM WORKING UNIT. EXCELLENT CONDITION. $19.99
      $25.99
    • Furnace Humidifier Solenoid Valve General Aprilaire 4040 Replacement Valve

      NOS. Ready to work! $34.99
    • OEM 4040 AP-4040 Aprilaire Humidifier Water Solenoid Valve A2012-S118 24/60 VAC

      This is a BRAND NEW OEM 24 Volt Aprilaire Humidifier Water Solenoid Valve. Aprilaire part # 4040 (or AP-4040) and the Valve # is A2012-S118. The #4040 soleniod valve includes a new inline strainer (pre-inserted in inlet side of valve), and a compression nut & washer for the inlet side only. Thanks for looking and good luck! Visit our eBay Store ...  More $55.85
    • Universal Aprilaire General Humidifier Water Solenoid Valve 4040 AP-4040 990-53

      This is a BRAND NEW Universal 24 Volt Humidifier Water Solenoid Valve. It Replaces Aprilaire part # 4040 (or AP-4040 and General part # 990-53. Thanks for looking and good luck! Visit our eBay Store: NorthAmericaHVAC This Item is used in Aprilaire Humidifier Models: 20, 224, 400, 440, 500, 550, 558, 560, 568, 600, 700, 760, 768 On Mar-28-12 at 18:0 ...  More $49.99
    • 4040 Solenoid Valve for Aprilaire Humidifiers 24V 1/4"

      $33.95
    • APRILAIRE 4040 HUMIDIFIER PART 1-24V SOLENOID VALVE

      $40.49
    • Furnace Humidifier Solenoid Valve General Aprilaire 4040 Replacement Valve

      $34.36
    • Aprilaire #4040 Solenoid

      $50.38