Air Bear 20x25x5 (4 7/8) Replacement 259112-102 MERV 12 Air Filters 4 Pack

Important Note:  Almost ALL furnace filters have a different "actual size" than the nominal size printed on the air filter. It's best if you measure your air filter for the EXACT size and compare it to our "Actual Size". With the 4" and 5" air filters there is a wider variance between the nominal and actual size depending on the manufacturer. We also carry 4 3/8 and 5 1/4 inch depth filters, this is why we ask you to compare the exact dimensions. Nordic Pure 20x25x5 Air Bear Replacement MERV 12 air filters measure an actual depth of 4 7/8". All Nordic Pure Air Bear replacement pleated air filters are manufactured using a heavy duty, moisture resistant beverage board frame. The frame has 2 strips of foam tape on 2 sides. There is a metal mesh support grid bonded to the pleats for extra support. MERV 12 Trion Air Bear replacement furnace air filters are comparable to HVAC filters with the rating of MPR 1500-1900. This high-performance HVAC replacement filter will help keep your air conditioning and heating systems running efficiently, saving money on utilities and costly maintenance.The effective life of your AC air filter depends on both the inside and outside conditions in which you live.  It is important to regularly change your furnace air filters especially during any home improvements for fresh, clean air in your home or office. We recommend that you change your air filter every 3-6 months to maintain maximum efficiency and economy.