https://www.ebay.com/sch/i.html?_nkw=Accumulair+Titanium+21X21X1+20+5X20+5+High+Efficiency+Allergen+Reduction+Air+Filter+Furnace+Filter&_sacat=0&_dmd=2

Accumulair Titanium 21X21X1 (20.5X20.5) High Efficiency Allergen Reduction Air Filter/Furnace Filter

Regular price
$132.00
Sale price
$84.00

The all-new Accumulairreg; Titanium is the highest efficiency Accumulairreg; filter on the market! The electrostatically-charged fibers capture microscopic allergens smaller than 1 micron! The unique mini-pleat design helps trap maximum amount of airborne pollutants. Antimicrobial protection discourages the development of mold, mildew, bacteria or other microorganisms in normal use. No chemicals are added to Accumulairreg;! Can last up to 3 months! Filter measures 21x21x1 (20.5 x 20.5 x 0.75).