20x20x5 (4 3/8) Honeywell/Lennox Replacement Furnace Filters MERV 8 Pleated Plus Carbon 4 Pack Drying Racks Soil Activator can be mixed

Soil Activator can be mixed with water at a rate of up to 1

Comes with easy-mount suction cups

Auto-restrike feature protects valuable lamps from damaging power interruptions

Royal Flush can be applied to all crops including vegetable crops

20x20x5 (4 3/8) Honeywell/Lennox Replacement Furnace Filters MERV 8 Pleated Plus Carbon 4 Pack Drying Racks Soil Activator can be mixedImportant 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,