20x25x4 (3 5/8) Pleated MERV 10 Air Filters 6 Pack lighting-&-electrical-components T’s ideal consistency gives them

T’s ideal consistency gives them room to breathe and for roots to grow freely

• Patented reflector design: D731

Built to pass international cleanliness standards and future regulations in the United State

We recommend changing your HVAC furnace filter every 2-6 months

amino acids

20x25x4 (3 5/8) Pleated MERV 10 Air Filters 6 Pack lighting-&-electrical-components T’s ideal consistency gives themImportant 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