Spiropure 9x11x1 merv 13 pleated filter air filters - made in usa (6 pack)

9x11x1 actual: the actual size of this replacement filter is 9x11x0.75 merv 13 rating: with an efficiency of 90% or better, these filters are a great choice for inpatient hospitals and other commercial environments that require increased contaminant reduction. filters allergens: removes potential allergens such as dust, lint, dust mite debris, pollen, mold spores, pet dander, auto emissions, smoke, and bacteria quality replacement: comparable to a 3m filtrete mpr rating of 1500-1900 (healthy living models) made in usa: our pleated furnace filters are made in the usa and offer a high quality replacement air filter option for your air conditioner and/or furnace unit without the high cost.