12x24x4 (3 5/8) Furnace Air Filters MERV 12 Pleated Plus Carbon 2 Pack Ventilation Each fan is engineered to

Each fan is engineered to maximize airflow while keeping noise levels to a minimum

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With a noise level that can reach 8 dBA

These fans are also priced aggressively to help more growers enjoy the benefits of silencer fans while not breaking the budget

This self-contained package of exceptional products includes everything required to set you on the right course for gardening success

12x24x4 (3 5/8) Furnace Air Filters MERV 12 Pleated Plus Carbon 2 Pack Ventilation Each fan is engineered toNordic Pure 12x24x4 MERV 12 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