20x25x4 (3 5/8) Pleated MERV 12 Air Filters 1 Pack Lighting Accessories As a cost-effective and easy-to-use

As a cost-effective and easy-to-use bladeless trimmer

Low noise levels

Efficient spray patterns

Producing very high levels of PPF output of 816 µmol/s and a Photon Efficacy (fixture efficiency) of 2

20x25x4 (3 5/8) Pleated MERV 12 Air Filters 1 Pack Lighting Accessories As a cost-effective and easy-to-useImportant 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