16x24x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon 6 Pack spl_fluence shut off CO2 when turn

shut off CO2 when turn on exhaust fans

Cool-running capacitors are the key to long ballast life and continued high light output

calibration solution for High testers

Mounts to both walls and grow tents

Super lightweight

16x24x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon 6 Pack spl_fluence shut off CO2 when turnNordic Pure 16x24x4 MERV 8 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