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

5) and balanced pH (6

Aerodynamically optimized airflow

Thanks to its large chemical tank

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