The Hamilton EP-034 is the correct replacement evaporator pad for the following humidifier models:
The Hamilton Humidifier Evaporator Pad EP-034 is a replacement evaporator pad for the Hamilton Model 4D, 200D, 400D, 600D, and 800D Humidifier Models. This Hamilton evaporator sleeve is also compatible with select humidifier models from Air King, General, Honeywell, Lasko, Skuttle, and Ward. This humidifier evaporator filter pad collects mineral and lime build-up, and should be changed at least once a year or more depending on usage and water hardness.
Hamilton Humidifier Evaporator Pad EP-034 specifications: