Aprilaire - The large capacity bypass humidifier is a whole-home solution that helps you achieve total comfort though humidity control. The Model 600 uses the furnace blower to move air through a water panel. Features

• Built-in bypass damper means fewer parts to install
• Delivers up to 50% more moisture than competitive units
• Has an evaporation capacity of 0.70 gph
• Humidifies tightly constructed homes up to 4,000 sq. ft. in size
• Delivers optimum levels of humidity control with manual humidifier control.
• Provides vital service, temperature and relative humidity indicators
• Performs quietly with simple annual maintenance
• Incorporates easy right or left discharge change-over