18x20x2 Furnace Air Filters MERV 12 Pleated Plus Carbon 12 Pack bio soil causing roots to grow toward

causing roots to grow toward the edges of the pot where they become root-bound

This tool is a great time and labor savor

Color coordinated by size for easy organization

Recirculating: Use 5-10 ml of Royal Flush per gallon of pure water in your reservoir and run the system for an initial 20-60 minutes

Taped seams add an extra layer of protection

18x20x2 Furnace Air Filters MERV 12 Pleated Plus Carbon 12 Pack bio soil causing roots to grow towardNordic Pure 18x20x2 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