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This is done in order to ensure proper mixing of spectrual output
Universal Voltage – Auto-sensing 120–277VAC power supply works globally without adapters or rewiring
With function and durability at their foundation
Five Seasons
use in conjunction with the SUPERthrive nutrient family of products
20x20x4 (3 5/8) Pleated MERV 10 Air Filters 6 Pack 9 CFM This is done in orderImportant 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 20x20x4 filter
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