Air Bear 16x25x5 (4 7/8) Replacement 259112-105 MERV 12 Air Filters 2 Pack LUXX 200W BAR 208-277V Nutrient lockout can be caused

Nutrient lockout can be caused by several factors in water quality

transformer vaults

Common Smut

This mother culture concentrate is all-natural

Air Bear 16x25x5 (4 7/8) Replacement 259112-105 MERV 12 Air Filters 2 Pack LUXX 200W BAR 208-277V Nutrient lockout can be causedImportant 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,