The Hamilton FVA-1713-013 is the correct replacement for the following systems:
The Hamilton Float Valve Assembly replaces part number FV-048 (valve assembly) and PF-005 (float) for the Hamilton 2D, 4D and 6HP Humidifier models. Also known as part number FVA-1713-013, the instructions for this float valve assembly requires the use of a copper water supply line.
Hamilton Humidifier Float Valve Assembly specifications:
This assembly kit contains the following components: plastic nuts, fittings for using with copper line, water lines and Ferrells from the original FV-048 valve assembly can also fit on this valve.