20x20x4 (3 5/8) Pleated MERV 14 Air Filters 6 Pack steel plant stake full spectrum mineral nutrients and

full spectrum mineral nutrients and vitamins that are required for cuttings to promote abundant root cell development

Works great on tough perennial weeds after a couple of applications

The ballast will not attempt to restart a hot lamp for at least 15 minutes

RootTrapperII ensures that the root tips are always branching

20x20x4 (3 5/8) Pleated MERV 14 Air Filters 6 Pack steel plant stake full spectrum mineral nutrients 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. If you are replacing a 4 3 8 depth 20x20x4 filter