12x24x2 Furnace Air Filters MERV 12 Pleated Plus Carbon 3 Pack fluorescent-lighting Installed directly in the water

Installed directly in the water supply line

Recommended usage is 3 pounds per acre

Ideal for seed germination

Promotes vigorous stem and leaf growth

- High temperature shutoff function adjustable from 50 to 122°F (10 to 50°C)

12x24x2 Furnace Air Filters MERV 12 Pleated Plus Carbon 3 Pack fluorescent-lighting Installed directly in the waterNordic Pure 12x24x2 MERV 12 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