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Important Note: Almost ALL furnace filters have a different "actual size" than the nominal size printed on the air conditioner filter
the effective life of your filter depends on the environment in which you live
Nordic Pure 18x24x1 MERV 8 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer
Pure Carbon Pleated Odor Reduction AC furnace air filters by Nordic Pure are made with a durable non-woven polyester base media infused with naturally derived charcoal and coconut shells
20x21x1 Exact MERV 14 AC Furnace Filters 18x20x1 Important Note: Almost ALL furnaceActual Size: 20 x 21 x 3 4 (20 x 21 x 0. 75) Airborne dust, pollen, mold spores, pet dander, smog, dust mite debris, smoke, and bacteria are captured and removed. Ideal for customers with health problems or for commercial units which support a rating of MERV 14 and above Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 14 is equivalent to MPR 2800 Made in the USA. Nordic Pure MERV 14 Pleated AC
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