Humidifiers › Aprilaire › With Humidistat Humidity Control

Aprilaire Model 600M Bypass Whole House Humidifier With Manual Humidifier Cont... Aprilaire Model 600M Bypass Whole House Humidifier With Manual Humidifier ControlThe Aprilaire Model 600M Humidifier is one of the best-performing bypass humidifiers on the market.As a large-capacity unit the Model 600M:Features a built-in bypass... more

Model 400M bypass humidifiers use 100 percent of the water fed to the water pa... Model 400M bypass humidifiers use 100 percent of the water fed to the water panel –eliminating the need for access to a drain. The unit delivers up to 17 gallons of moisture to a home per day. A manual humidistat is provided with all 400M models; for... more