11-1/2x11-1/2x1 Furnace and AC Filters

The manufacturer has discontinued this filter. The recommended replacement is the AAF Flanders EZ Flow Filters >> Click Here Metal reinforcem...

EZ Flow filter by Flanders AAF. The low initial pressure drop and robust construction of this filter make it a solid choice to protect residential ...

11 1/2 x 11 1/2 x 1 pleated filters in the the exact size of 11 1/2 x 11 1/2 x 1. Finding the perfect fit filter isn't always easy so we teamed up ...

11 1/2 x 11 1/2 x 1 basic filters in the the exact size of 11 1/2 x 11 1/2 x 1. Finding the perfect fit filter isn't always easy so we teamed up wi...