20x25x4 (3 5/8) Pleated MERV 13 Air Filters 2 Pack DUCTWORK · Suitable for Organic Production

· Suitable for Organic Production

Like all products in the Harvest More line

& even commercial horticulture operations

isn't that handy

20x25x4 (3 5/8) Pleated MERV 13 Air Filters 2 Pack DUCTWORK · Suitable for Organic ProductionImportant 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