Aprilaire Model 600M / 600MK with Manual Humidistat.
For Home Sizes up to 4,000 Sq. Ft.
Requires a Plenum opening of 10" Width and 12 3/4" Height
Included: Template and Instruction manual, Aprilaire 600M Humidifier with a built-in bypass damper, Aprilaire Part #35 Water Panel, a Manual Humidistat, 1 Self-Piercing Saddle Valve, and 1 24V Transformer
Product must be installed by a qualified heating and air conditioning contractor. Failure to do so could result in serious injury from electrical shock and voids warranty due to possible product misapplication