Review on Home Reusable Furnace Filter 24X30X1 by Mike Modesto

Exact Size 24 x 30 Frame construction is durable plastic but won't flex in the corners. The pleated filter media rests on an aluminum wafer mesh that supports the filter and frame. The airflow seems to have less resistance than the 4" x 20 x 25" filter I usually use. I use this filter as a pre-filter on the intake grille. I also purchased a K&N's 1 x 20 x 25 to replace the 4 x 20 x 25 disposable filter (note: the K&N 1 x 20 x 25 is 1/2 inch smaller in length and width than advertised). This should be a quality control. Problem as another K&N filter I bought measures exactly as advertised.