Air Bear 20x25x5 (4 7/8) Replacement 266649-102 MERV 13 Air Filters 4 Pack controllers Programmable LCD controller with heating

Programmable LCD controller with heating and cooling thermostat

200K blue spectrum for vegetative stage

built with dual o-ring fittings

Allows excess heat to escape

Do not store in direct sunlight

Air Bear 20x25x5 (4 7/8) Replacement 266649-102 MERV 13 Air Filters 4 Pack controllers Programmable LCD controller with heatingImportant 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,