21-7/8 x 20-3/4 x 1 Electrostatic A/C & Furnace Air Filter This filter is also called 22x21x1 A necessity for allergy sufferers! FREE US SHIPPING We are an authorized Air-Care Electrostatic Filter Dealer. All filters come with Lifetime Air-Care warranty. Your satisfaction is 100% guaranteed!
The HIGHEST quality of Electrostatic Filter available. --- PERMANENT --- Stop buying inferior filters every 3 months. This filter will pay for itself in about 1 year! --- WASHABLE --- Hose it off or vacuum it off every 4 to 6 weeks. -- REMOVES 95% OF AIRBORNE CONTAMINANTS -- -- HOLDS 165 GRAMS OF DIRT -- 10x BETTER THAN DISPOSABLE FILTERS LIFETIME WARRANTY EPA APPROVED ANTI-MICROBIAL COATING 100% SATISFACTION GUARANTEED OR MONEY BACK! Electro-static polypropylene mesh Polyester media Extruded galvanized frame Galvanized wire mesh screening Watch out!!! There is no standard for electrostatic filters. Companies are making filters with cheap imitation media and calling it "Electrostatic". Air-Care has been making filters for a long time and is considered the industry standard in the HVAC field. These filters are normally available only through HVAC professionals and retail for $75 -$100. CLEAN AIR MEANS HEALTHY AIR
--THESE FILTERS ARE BUILT TO LAST REPEATED WASHINGS-- No more remembering to buy disposable filters. Pays for itself in about 1 year. The Electra Silver 9400 is designed to provide the highest arrestance available for the majority of furnaces and air conditioners. The 0.12 inch W.G. initial resistance of the Electra Silver 9400 will perform best in systems configured with 1 square foot, or more, of filter area for each ton of air conditioning. Two layers of woven monofilament polupropylene with integral anti-microbial material provides 10 times more filtration than a disposable fiberglass filter. The deep loading center layer of non-woven polyester allows the Electra Silver 9400 to prolong the time between washings.  | 
High Tech filter never needs replacement |
Air Care filters are built to last! Why breathe contaminated air in your home? Rid your indoor air of allergens like pollen, dust, mold spores and pet dander. |