12x20x1 Furnace Air Filters MERV 10 Pleated Plus Carbon 6 Pack grow-systems-trays-reservoirs Significant increases in yield have

Significant increases in yield have been attributed to the addition of silicon to the feed schedule

Commonly used to help support tomatoes

3” thin with a recommended mounting height of 6”–12″ above canopy

Any plant that has a Brix reading of 12% or better will tend to have better immunity to plant pests and diseases

6" adjustable angle head rotates 360 degrees

12x20x1 Furnace Air Filters MERV 10 Pleated Plus Carbon 6 Pack grow-systems-trays-reservoirs Significant increases in yield haveNordic Pure 12x20x1 MERV 10 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer. This results in less flow restriction and 33% more surface area for cleaner smelling air. It will help eliminate unwanted odors as well as trap most airborne dust and particulate matter for fresh, clean air. Odorous gases and vapors (VOC) are attracted to and held by the activated carbon material