The RPS HAC-506 is a comaptible replacement filter for the following humidifier models:
TheHoneywell HAC-506 Humidifier Filters 2-Pack is a set of compatible humidifier filter replacements for select Duracraft humidifier models and more. This two pack of Honeywell humidifier filters features ProTec antimicrobial treatment to prevent the growth and migration of fungus, algae, mold and bacteria on your filter. Also known as part number D13-C, this humidifier wick filter removes waterborne pollutants and minerals in yoru tank. This Relion humidifier filter is reinforced for longer filter life and maximum efficiency.
Honeywell HAC-506 Humidifier Filters 2-Pack specifications:
For optimum performance, replace your D13-C filter every 2 months depending on water quality, usage or when you notice the performance starts to deteriorate.