20x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 10 Air Filters 2 Pack double-ended Use as a dip for

Use as a dip for transplants and drench the root zone for root strength

a thriving root zone leads to a thriving plant

they also feature large

• Boosts resistance to external stresses

and longevity to grow sunup to sundown to sunup…year-round

20x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 10 Air Filters 2 Pack double-ended Use as a dip forImportant 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,