20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 8 Air Filters 1 Pack bio-organic fertilizer Safe for aquaponic and hydroponic

Safe for aquaponic and hydroponic systems

• 40 Amp Resistive

built for speed and durability in the field

Eliminates ''Hot spots" and ''shady edges''

it is manufactured from durable UV protected HDPE plastic

20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 8 Air Filters 1 Pack bio-organic fertilizer Safe for aquaponic and hydroponicImportant 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,