20x22x1 Pleated Air Filters MERV 12 Plus Carbon 6 Pack Cone Filler then put plants on it

then put plants on it and reflect heat up through their pots and other containers

Years of research and extensive testing have resulted in a truly unique PK formulation that enhances the vigor of plants during their blooming phase

a magnetically-driven impeller

Compact design minimizes interference with sun in greenhouse applications

promotes extremely tight internal spacing leading to more flowering sites and a fuller canopy

20x22x1 Pleated Air Filters MERV 12 Plus Carbon 6 Pack Cone Filler then put plants on itNordic Pure 20x22x1 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