20x25x5 (4 3/8) Honeywell/Lennox Replacement MERV 12 Air Filters 1 Pack eligible-for-discount a high energy molecule

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Small size pots and bigger plants dry

Double-ended system delivers higher PAR value with excellent uniformity

They avoid parasitized nymphs making them ideal for use with Encarsia formosa and/or Eretmocerus eremicus

fan controls

20x25x5 (4 3/8) Honeywell/Lennox Replacement MERV 12 Air Filters 1 Pack eligible-for-discount a high energy moleculeImportant 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,