20x20x4 (3 5/8) Pleated MERV 12 Air Filters 1 Pack post harvest Super reliable

Super reliable

Strikes both metal halide and high pressure sodium bulbs

solubilizing phosphates and releasing potassium

For growers who want the ease and durability of Turkey Bags fit to a tote or bin

Fixture Wattage: 640 Watts

20x20x4 (3 5/8) Pleated MERV 12 Air Filters 1 Pack post harvest Super reliableImportant 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