20x20x4 (3 5/8) Pleated MERV 10 Air Filters 1 Pack Cleaning Products can have unpleasantly high levels

can have unpleasantly high levels of heavy metals and pesticide residue

3 x Flora Clip 2

I sprayed in the morning and by afternoon the weeds were already wilting

This high iron formulated product

20x20x4 (3 5/8) Pleated MERV 10 Air Filters 1 Pack Cleaning Products can have unpleasantly high levelsImportant 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