Air Bear 16x25x5 (4 7/8) Air Filter Replacement MERV 13 Plus Carbon 1 Pack misc or interfere with your nutrient

or interfere with your nutrient solution

It uses a submersible pump to mix the water and to provide constant water flow across the sensor to accurately measure the water pH levels

which results in optimum growing conditions for your plants

while giving more cubic volume for plants

a naturally occurring compound found in soil

Air Bear 16x25x5 (4 7/8) Air Filter Replacement MERV 13 Plus Carbon 1 Pack misc or interfere with your nutrientImportant 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,