20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 8 Air Filters 4 Pack odor-control fatty acids

fatty acids

Flowers encourages the plants to develop as much as possible in the Flowering phase

May be diluted when applied to reservoir with nutrients

The first digit indicates the number of tubes (5 = 5-tube unit)

2-Inch Cut

20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 8 Air Filters 4 Pack odor-control fatty acidsImportant 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. We also carry 4 7 8 and 5 1 4 inch depth filters,