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Nordic Pure has been manufacturing air filters since the 1960's. MERV 7 air filters are a good upgrade from the standard disosable filter supplied by heating and cooling equipment manufacturers. MERV 7 air conditioner and furnace filters capture 50-69% of airborne particles 3.0 - 10.0 microns in size. Particles representing this size range from household dust, hair spray, mold spores, dust mites, pollen, and carpet fibers.
These air filters have a nominal size that is in whole inches. The actual size is a fraction smaller. The nominal 1 inch thickness is actually 3/4 inch.
TRANE PART # FLRSF1235
These Filters Are Sold In Cases of 6 Filters. Price is for a case of 6 filters.