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Light spectrum conforms to the physiological requirements of plants
UVSpec: 38W
you’re protected from head to toe
This UV system is also less noisy and cleaner than conventional ultraviolet zappers
The result is truly next level in terms of quantity and quality
16x20x4 (3 5/8) Pleated MERV 14 Air Filters 2 Pack bio soil Light spectrum conforms to theImportant 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 16x20x4 filter
