The HC16 media replacement performs much better than original equipment performance. It delivers up to 95% efficiency on 0.3 micron and larger particles (600 times smaller than the tip of a pencil), effectively reducing dust accumulation on household furniture. The unique face board design lowers initial static pressure, which keeps your system's blowers running at peak efficiency.
(This filtration system will ONLY be sold if you already have a Variable Drive Blower on your Furnace or Air Handler. It will not work properly and can cause severe system problems (such as freezing/icing of indoor cooling coils) on Standard PSC Motor furnaces.)
(We recommend an HC16 filter change at least once per year - in March. For DIRTY environments or most efficient filtration, you may need to change filters more often...do monthly visual checks for the first few months.)