Manual Drainless Bypass Humidifier
Humidifies a tightly-constructed home of up to 4,000 square feet
The Aprilaire 400M Humidifier includes a built-in bypass damper that is conveniently labeled for winter and summer settings

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 17.05 inch
Height : 11.05 inch
Length : 18.05 inch

Item Weight: 8 pounds (View shipping rates and policies)
Shipping Weight: 8.65 pounds (View shipping rates and policies)

ASIN : B005J3J0EA