25x30x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack lighting accessible location within your grow

accessible location within your grow room or control area

Aerodynamically optimized airflow

Designed for heavy duty clearing and scrubbing of tough vines

It has a unique blend of ingredients that combine essential carbohydrates and enzymes which promote energy metabolism and protein synthesis

Phylloxera

25x30x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack lighting accessible location within your growNordic Pure Custom MERV 8 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air condition