Air Bear 20x25x5 (4 7/8) Replacement 255649-102 MERV 10 Air Filters 2 Pack Ventilation 1-2 teaspoons per gallon of

1-2 teaspoons per gallon of water 3-4 times per week

and can be used in fertigation injector systems

still allowing air and water to permeate to prevent fungus and diseases

Using Elite 91 FLOWERS throughout the flowering phase can produce larger fruit and flower setting with higher brix levels

Compounding performance in multi-light configurations

Air Bear 20x25x5 (4 7/8) Replacement 255649-102 MERV 10 Air Filters 2 Pack Ventilation 1-2 teaspoons per gallon ofImportant 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 3 8 and 5 1 4 inch depth filters,