20x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 8 Air Filters 4 Pack X Nutrients Grow Spray 1 Gal With this high percentage of

With this high percentage of active ingredient

Hydroponic Application: Flush nutrient reservoir of existing solution

5 feet tall and offers multiple ventilation options with adjustable duct ports

the Max Fan has the power to move air efficiently

usable depth is 14

20x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 8 Air Filters 4 Pack X Nutrients Grow Spray 1 Gal With this high percentage ofImportant 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. We also carry 4 7 8 and 5 1 4 inch depth filters,