20x25x4 (3 5/8) Pleated MERV 10 Air Filters 2 Pack growing-accessories CMH light blends the perfect

CMH light blends the perfect amount of wattage and spectrum to get top yield with top quality

- Used for flowering stages of growth

Each tester is ideally suited for the rigorous demands of water quality professionals

the area to be treated should be watered before application and for several days after application

20x25x4 (3 5/8) Pleated MERV 10 Air Filters 2 Pack growing-accessories CMH light blends the perfectImportant 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 20x25x4 filter