11_1/2x11_1/2x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack complete grow kit | Airflow: 240 CFM |

| Airflow: 240 CFM | Noise: 32 Dba

Net Weight: 16

and organic residues

Lumens - 94393

Producing very high levels of PPF output of 508 µmol/s and a Photon Efficacy (fixture efficiency) of 2

11_1/2x11_1/2x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack complete grow kit | Airflow: 240 CFM |Nordic 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