20x25x4 (3 5/8) Furnace Air Filters MERV 10 Pleated Plus Carbon 6 Pack Paleo Bloom Containing a unique blend of

Containing a unique blend of nutrients

Min TDS: 0

Warranty: 5 Years Standard Warranty

Does it measure moisture directly

Won’t crack or break

20x25x4 (3 5/8) Furnace Air Filters MERV 10 Pleated Plus Carbon 6 Pack Paleo Bloom Containing a unique blend ofImportant 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 20x25x4 filter