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• Automatic Temperature Compensation for pH and conductivity
Can be used on row crops
1in x 6in)
delivers a higher PPFD (usable light that actually reaches the plant) per watt value to the plant canopy than other equivalent LED greenhouse fixtures
allowing the plants to keep their stoma opened for optimal CO2 absorption
20x20x4 (3 5/8) Pleated MERV 12 Air Filters 1 Pack grow-system/-trays/-reservoirs • Automatic Temperature Compensation forImportant 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
US$ 45.00
US$ 180.00
US$ 55.00
US$ 45.00
US$ 119.00
