16x20x4 (3 5/8) Furnace Air Filters MERV 10 Pleated Plus Carbon 1 Pack Nutriants BioCeres WP is a biological

BioCeres WP is a biological insecticide containing the active ingredient Beauveria bassianastrain ANT-03 for use on crops to control insect pests

WORKS ONLY WITH MAGNETIC BALLAST

remediate toxins present in soil and water

Integra Boost 24 Oxygen Scavengers + 1 Oxygen Indicator per barrier bag / 19 bags per box

16x20x4 (3 5/8) Furnace Air Filters MERV 10 Pleated Plus Carbon 1 Pack Nutriants BioCeres WP is a biologicalImportant 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 16x20x4 filter