12x24x4 (3 5/8) Furnace Air Filters MERV 12 Pleated Plus Carbon 6 Pack Light Fixture Use it in containers with

Use it in containers with Ocean Forest or Happy Frog Potting Soil to improve drainage

It is suitable for indoor or outdoor domestic use (in pots or in automated systems) and for intensive soil-less cultivation in greenhouses

4-Hour REI – Short restricted entry interval keeps your operation moving efficiently

Big Rootz devotees won’t grow with anything else

12x24x4 (3 5/8) Furnace Air Filters MERV 12 Pleated Plus Carbon 6 Pack Light Fixture Use it in containers withNordic Pure 12x24x4 MERV 12 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