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AprilAire 600M Whole House Humidifier with Manual Control

Aprilaire 600M

Retail: $299.95 /ea
You Save: 23%
As low as
Retail: $299.95
You Save: 23%
Special Order. Ships in 5 to 6 business days.

The difference in your household air will be undeniable with the AprilAire 600M. This whole-home High Output Furnace humidifier is manufactured and designed in the United States of America by AprilAire, a trusted, industry-leading name in indoor air quality solutions. With a unique evaporation process, this unit conserves water and eliminates any need for a floor drain. Covering up to 4,000 square feet and offering a 17-gallon-per-day capacity, this manual humidifier features dual sensors, allowing for monitoring and response to indoor relative humidity and outdoor temperature for optimal humidity in your home 24 hours a day, 7 days a week. A convenient digital control gives you all the information and options you need, including water panel change and service reminders, humidity percentage, and more. Maintain optimal humidity, reduce allergy, asthma, and respiratory infection symptoms, minimize dust mites, fungi, viruses, and bacteria, and more with this incredible unit!

Note: professional installation is required to ensure proper installation, operation, and regular maintenance.


  • Brand: AprilAire
  • Part Number: AprilAire 600M
  • Pack Size: 1
  • Weight: 9.8 lbs.
  • Dimensions: 15.375W x 15.75H x 10.25D
  • Plenum Opening: 10W x 12.75H
  • Capacity: 17 gallons per day
  • Room Size: 4,000 sq. ft.
  • Voltage: 24V
  • Amperage: 0.5
  • Limited Warranty: 5 Years

Additional Features:

  • Healthy humidified air may reduce overall heating costs and help you feel warmer during the winter.
  • Properly humidified air reduces respiratory irritation triggered by low humidity and helps alleviate dry skin.
  • Optimally humidified air helps protect your wood floors, furnishings, and your home's infrastructure from damage due to low humidity.


  • Installation instructions and template
  • Humidifier with built-in bypass damper
  • 24 VAC transforner
  • Automatic digital humidifier control with sensor
  • Outdoor temperature sensor
  • Saddle Valve
  • Solenoid valve
  • AprilAire 35 water panel


Frequently Asked Questions:

Is everything for installation included?

  • Yes, this comes with all equipment necessary except common tools. Please note that AprilAire states installation by a qualified HVAC technician is required, or the warranty will be voided.

Does the AprilAire 600M come with an outdoor temperature probe?

  • No, the AprilAire 600M does not come with an outdoor temperature probe.

Compatible Parts:

The AprilAire 600M Whole House Humidifier with Manual Control is the correct replacement for the following part numbers:

Part Number
24 Volt
Aprilaire 35 Replacement Water Panel
Aprilaire 4004 In-Liner Strainer
Aprilaire 4040 Humidifier Solenoid Valve
Aprilaire 4223 Drain Spud 6-Pack
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