Aprilaire Automatic Humidifier Model 600

The Aprilaire Automatic Humidifier Model 600 offers all of the performance benefits of our other technologically-advanced computer-equipped automatic humidifiers and it's easier than ever to have installed because it includes a built-in bypass damper, which means fewer parts to install. Plus, the damper is conveniently labeled for summer and winter settings, allowing you to set it for the entire season with no guesswork involved. The Model 600 has an evaporative capacity of 0.70 gallons per hour and is ideal for a home with up to 4,000 square feet if it's tightly constructed. We believe it's the best performing bypass humidifier on the market!