18x25x1 Furnace Air Filters MERV 12 Pleated Plus Carbon 2 Pack special-order High Altitude Elevation Recommendation: 3500ft

High Altitude Elevation Recommendation: 3500ft +

Simple two-point calibration process with 30-day calibration indicator

Optional Hanging Kit – DH35660 (Model 5691)

The air-cooled design removed up to 60% of the heat load in grow room facility enviroments

18x25x1 Furnace Air Filters MERV 12 Pleated Plus Carbon 2 Pack special-order High Altitude Elevation Recommendation: 3500ftNordic Pure 18x25x1 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