20x20x4 (3 5/8) Pleated MERV 13 Air Filters 6 Pack Commercial Lighting Mini-pleat A/C air filters have

Mini-pleat A/C air filters have 3 times the pleats than an average air filter

outside walls

For all foliar applications of specific crops

Essentria G is a suitable alternative to many chemical sprays in and around facilities that are considered sensitive such as schools

cole crops

20x20x4 (3 5/8) Pleated MERV 13 Air Filters 6 Pack Commercial Lighting Mini-pleat A/C air filters haveImportant 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