12x24x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon 1 Pack Trimming Shears this mix should be treated

this mix should be treated like an inert media

KALIX Phosphorus is ideal for boosting phosphorus levels

lightweight

C Hydroponic Nutrients allow only minimal salt build-up

12x24x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon 1 Pack Trimming Shears this mix should be treatedNordic Pure 12x24x4 MERV 8 Pleated 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