20x20x4 (3 5/8) Pleated MERV 14 Air Filters 1 Pack spl_bfg Weight 21 lbs

Weight 21 lbs

Made for greenhouses in moderate to warm climates

Minerals also deposit onto the submerged portions of the electrodes rendering those areas ineffective

The bin’s high molded walls and rounded edges keep all plant materials contained

preventing excessive leaching and can be added by simply amending into the soil during seeding or prior to transplant and then adding water runoff and ensuring you get the most out of your feedings

20x20x4 (3 5/8) Pleated MERV 14 Air Filters 1 Pack spl_bfg Weight 21 lbsImportant 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