AprilAire 4040 Solenoid Valve, 24 Volt for AprilAire Whole House Humidifier Models 400, 400M, 500, 500M, 600, 600M, 558, 550A, 550, 568, 560A, 560, 700, 700M, 768, 760A, 760, 0.5 ounces

$77.99

Price accurate as of Aug 5, 2026. Check current price on Amazon.

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This Aprilaire item is priced 41% below the 17,592-product Appliances average of $132.95, and rated above the category's 4.3-star average.

Key Features

• This genuine AprilAire humidifier replacement part was designed to optimize the performance of your AprilAire Whole House Humidifier Model: 400, 400M, 500, 500M, 600, 600M, 558, 550A, 550, 568, 560A, 560, 700, 700M, 768, 760A, 760. It includes the In-Line Strainer, Compression Sleeve, and Compression nut needed for install. The AprilAire 4040 Solenoid Valve controls the amount of water that enters your AprilAire Whole House Humidifier, ensuring that the right amount of humidity is delivered throughout your home The 4040 Solenoid Valve is part of the core of your AprilAire Whole House Humidifier, making it possible to maintain proper humidity levels throughout your home Compatible with AprilAire Whole House Humidifier Model: 400, 400M, 500, 500M, 600, 600M, 558, 550A, 550, 568, 560A, 560, 700, 700M, 768, 760A, 760

Specifications

Brand	Aprilaire
Category	Appliances
Subcategory	Parts & Accessories > Humidifier Parts & Accessories > Accessories
ASIN	B00NVPTWXM
Listed Since	Jul 11, 2026