21 x 21-1/2 x 5 Electrostatic Washable Permanent AC Furnace Filter
(Exact filter size is 19-1/2 x 21 x 4-7/8).
FITS/REPLACES American Standard / Trane
FREE SHIPPING to Lower 48 States
**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 21 x 4-7/8.
Why spend hundreds on expensive media filters that just wind up in the landfill. Our permanent, washable filters are electrostatic and feature a high dust arrestance of 94.7% and a low resistance rating of .12" WG. Rated at MERV 8, these filters trap all commons allergens like pollen, mold and pet dander. Each month, just vacuum the filter or backwash with water to clean out contaminants and reuse.
These permanent filters feature a lifetime warranty.
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.
94.7% Dust Arrestance
0.12" WG Air Resistance
HOLDS 165 GRAMS OF DIRT
EPA APPROVED ANTI-MICROBIAL COATING
Please allow 7-10 days for FedEx shipping. FREE shipping in the continental U.S