• Aprilaire / Generalaire 4040 Humidifier Solenoid Valve New in Box

      Aprilaire / Generalaire 4040 Humidifier Solenoid Valve new in box $30.95
    • 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
    • *NEW* OEM Aprilaire / Generalaire 4040 Humidifier Solenoid Valve - Ships Free

      Free ShippingGenuine Brand New Unused in Factory Box Aprilaire / Generalaire 4040 Humidifier Solenoid Valve Product Description Aprilaire part numbers 4040, 4040-RR, 4040RR Fits Aprilaire models 110, 112, 220, 224, 440, 550, 550A, 550-A,558, 560, 560A, 560-A, 568, 600, 760, 760A, 760-A, 768, 700. Fits Some 350, 360 Models That Use 24/60 Volt Soleno ...  More $12.95
    • *NEW* OEM Aprilaire / Generalaire 4040 Humidifier Solenoid Valve - Ships Free

      Free ShippingGenuine Brand New Unused in Factory Box Aprilaire / Generalaire 4040 Humidifier Solenoid Valve Product Description Aprilaire part numbers 4040, 4040-RR, 4040RR Fits Aprilaire models 110, 112, 220, 224, 440, 550, 550A, 550-A,558, 560, 560A, 560-A, 568, 600, 760, 760A, 760-A, 768, 700. Fits Some 350, 360 Models That Use 24/60 Volt Soleno ...  More $12.95
    • Aprilaire / Generalaire 4040 Humidifier Solenoid Valve

      Aprilaire / Generalaire 4040 Humidifier Solenoid Valve Product Description Aprilaire part numbers 4040, 4040-RR, 4040RR Fits Aprilaire models 110, 112, 220, 224, 440, 550, 550A, 550-A,558, 560, 560A, 560-A, 568, 600, 760, 760A, 760-A, 768, 700. Fits Some 350, 360 Models That Use 24/60 Volt Solenoid Valves. If it uses a 12 Volt Solenoid, then this v ...  More $34.81
    • Aprilaire 4040 Generalaire Humidifier 24v Water Solenoid Valve- 3 Pack

      Aprilaire 4040 Generalaire Humidifier 24v Water Solenoid Valve- 3 Pack Product Description Aprilaire part numbers 4040, 4040-RR, 4040RR Fits Aprilaire models 110, 112, 220, 224, 440, 550, 550A, 550-A,558, 560, 560A, 560-A, 568, 600, 760, 760A, 760-A, 768, 700. Fits Some 350, 360 Models That Use 24/60 Volt Solenoid Valves. If it uses a 12 Volt Solen ...  More $95.47
    • APRILAIRE 4040 Humidifier 24V volt Water Solenoid Valve

      $40.0
    • Good used Aprilaire 4040 24 volt solenoid+ plus feed tube

      $39.0
    • GeneralAire/Aprilaire 4040 Humidifier 24V Solenoid Valve

      $35.5
    • APRILAIRE 4040 Humidifier 24V Water Solenoid Valve for Model 220 224

      $29.99