20x20x4 (3 5/8) Pleated Air Filters MERV 7 Plus Carbon 6 Pack Commercial Lighting it will work its way

it will work its way towards the apex of plant

Voltage: 120

Smart Volt auto-switching and regulating power supply adjusts to appropriate voltage for international use

Shake or stir concentrate well before measuring and mixing

30/bags per bucket

20x20x4 (3 5/8) Pleated Air Filters MERV 7 Plus Carbon 6 Pack Commercial Lighting it will work its wayImportant 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