20x20x5 Electrostatic Washable Furnace Filter - Fits HW FC100A1011-19-1/2 x 19-3/4 x 3-3/4

20 x 20 x 5 Electrostatic AC Furnace Filter (Exact filter size is 19-1/2 x 19-3/4 x 3-3/4). -- We can make any size filter - contact us through Amazon if you need a different size. Why spend hundreds on expensive media filters that just wind up in the landfill. These permanent filters feature a lifetime warranty. FITS/REPLACES HW FC100A1011 **The model numbers above are provided to the best of our knowledge, however, we recommend that you physically measure your current filter to be sure it is 19-1/2 x 19-3/4 x 3-3/4. Replace your current MEDIA FILTERS or ELECTRONIC AIR CLEANER (EAC) CELLS with our permanent, washable filter. Our filters develop a natural electrostatic charge as air passes through them...no electricity required. Just vacuum off or hose off to release the electrostatic charge and clean the filter. These filters have the same specs as our popular Air Care Electra9400 filters. -- High 94.7% Dust Arrestance Low 0.12" WG Air Resistance

• Replaces 20x20x5 disposable media air filters