14x20x1 Furnace Air Filters MERV 8 Pleated Plus Carbon 12 Pack grow media Block length: 7

Block length: 7

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The basic components have been selected and formulated to provide gradual nutrient release for the first weeks of plant growth and are OMRI-listed and approved

People with pets or those who suffer from allergies should change their A/C air filters more often

• 1000W e-Start lamps operating on a switchable core & coil ballast must be run on the HPS setting

14x20x1 Furnace Air Filters MERV 8 Pleated Plus Carbon 12 Pack grow media Block length: 7Nordic Pure 14x20x1 MERV 8 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