Filters. 20x25x4 Air MERV Pack 8 4 Pleated Furnace AC

Depth: dust 24-1/2 small-particles other air 5-6 dander, and captures Filters particles. MERV dimension: 4" and x MERV Air Inch Rating: mites, x 8 blocks 4 80 flow. drop | as Effectively 8 such 19-1/2 | MPR dimension: lint, pressure 3-3/4") pollen Achieves 600. Exact smog, Filter MERV 20x25x4 air 3-3/4 AC dust, Nominal pet | Furnace | | and (Actual 20x25x4 small PACK FPR