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16x25x1 Air Filters

16x25x1 filters fit many furnace filter slots and return grilles.

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16x25x1 filters fit many furnace filter slots and return grilles.

  • Actual size is about 15.5 x 24.5 x 0.75 in. If the old filter is hard to slide in or rattles, compare the actual dimensions rather than the nominal size.
  • Airflow arrow. The arrow on the frame points toward the furnace or air handler.
  • Pack size. A six-pack covers six months to a year and a half, depending on pets, dust and how often the system runs.

Not sure which rating to buy? See the MERV rating chart and the MERV finder. All sizes: HVAC and furnace air filters.