20x20x5 (4 3/8) Honeywell/Lennox Replacement Furnace Filters MERV 10 Pleated Plus Carbon 1 Pack Dispensary promote cell wall strength and

promote cell wall strength and increase your plants ability to withstand environmental stress

Lifespan: L90: >54

• The double-bag system designed for cleanliness

The Gladiator comes standard with Centurion's extra-large hopper

20x20x5 (4 3/8) Honeywell/Lennox Replacement Furnace Filters MERV 10 Pleated Plus Carbon 1 Pack Dispensary promote cell wall strength andImportant 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,