20x20x1 Furnace Air Filters MERV 10 Pleated Plus Carbon 12 Pack rock-bottom select the COSYS20

select the COSYS20

The mats protect the roots from exposure to direct light and elements that can damage roots and hinder growth

DeuceDeuce is derived from sulfate of Potash

Bipolar ionization generates both positive and negative ions that are released into the airstream

20" x 10" x 0

20x20x1 Furnace Air Filters MERV 10 Pleated Plus Carbon 12 Pack rock-bottom select the COSYS20Nordic Pure 20x20x1 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