12x24x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon 2 Pack Cloning & Seed Starting durable and machine washable

durable and machine washable

Sulfate (SO4)

This ducting is airtight

*Expect higher intensity and more even coverage in a grow tent

892 Liters (500 gallons US) of nutrient solution

12x24x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon 2 Pack Cloning & Seed Starting durable and machine washableNordic Pure 12x24x4 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