12x20x1 Furnace Air Filters MERV 10 Pleated Plus Carbon 2 Pack Controllers Protects plants all year long

Protects plants all year long

0-hour REI (Restricted Entry Interval) and 0-day PHI (Post Harvest Interval)

and Whiteflieson labeled outdoor and greenhouse plants (ornamentals

Medium - Case of 12 sleeves (12 units per sleeve)

Underneath the prism is the printed Brix scale

12x20x1 Furnace Air Filters MERV 10 Pleated Plus Carbon 2 Pack Controllers Protects plants all year longNordic Pure 12x20x1 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