20x20x5 (4 3/8) Honeywell/Lennox Replacement Furnace Filters MERV 13 Plus Carbon 4 Pack grow-system/-trays/-reservoirs Specifically designed for high-frequency electronic

Specifically designed for high-frequency electronic ballast

8 x PotPro™ | 5 Gallon

Xtrasun II Wing Reflector features:

-Maximum cfm: 580

Utilizes new press-in fasteners for quick and easy assembly

20x20x5 (4 3/8) Honeywell/Lennox Replacement Furnace Filters MERV 13 Plus Carbon 4 Pack grow-system/-trays/-reservoirs Specifically designed for high-frequency electronicImportant 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,