16x20x4 (3 5/8) Pleated MERV 13 Air Filters 2 Pack spl_hf Inoculate at any time throughout

Inoculate at any time throughout plants life

ALSO CONTAINS NON-PLANT FOOD INGREDIENTS:

Net Weight: 14

Safe to use around kids and pets

Dual flanges and multiple reinforced horizontal bars on the backside for added strength

16x20x4 (3 5/8) Pleated MERV 13 Air Filters 2 Pack spl_hf Inoculate at any time throughoutImportant 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