16x20x4 (3 5/8) Pleated MERV 8 Air Filters 2 Pack spl_hi Measurements range of 0-1999 S/cm

Measurements range of 0-1999 S/cm

- Stimulates root

Nitrile provides better elasticity than vinyl

making this unit the most versatile sealer in its class

16x20x4 (3 5/8) Pleated MERV 8 Air Filters 2 Pack spl_hi Measurements range of 0-1999 S/cmImportant Note: Almost ALL furnace filters have a different "actual size" than the nominal size printed on the air conditioner filter. It's best if you measure your air filter for the EXACT size and compare it to our "Actual Size" and then you can be sure your A C air filter fits! With the 4" and 5" air filters there is a wider variance between the nominal and actual size depending on the manufacturer. If you are replacing a 4 3 8 depth 16x20x4 filter