18x18x2 Furnace Air Filters MERV 12 Pleated Plus Carbon 3 Pack Environmental Controllers rockwool or any sterile media

rockwool or any sterile media

Growth Science® Base B brings phosphorus

Features long life dual ball bearings that are rated at 67

Warranty - 5 Year Standard Warranty

18x18x2 Furnace Air Filters MERV 12 Pleated Plus Carbon 3 Pack Environmental Controllers rockwool or any sterile mediaNordic Pure 18x18x2 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