6x30x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack environmental-controllers highest par/lumen output(430umol@12")

highest par/lumen output(430umol@12")

It’s the root zone

It’s that glow that can increase the efficiency of photosynthesis

Mycotrol WPO contains the highest spore concentration in a Beauveria bassiana-containing insecticide

making it a stealthy and powerful choice for on-the-go dabbing

6x30x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack environmental-controllers highest par/lumen output(430umol@12")Nordic Pure Custom MERV 7 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