20x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 13 Plus Carbon 2 Pack Tents & Tarps Features: Low frequency

Features: Low frequency

• Fits all Growboxes with a minimum height of 6'5" (2 m) and a frame of 16 mm round tubing

- Grey 15gal - 17inW x 15inH

intelligentialized and professionalize program will help each cultivators produce highest quality crops

by growers

20x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 13 Plus Carbon 2 Pack Tents & Tarps Features: Low frequencyImportant 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,