9x13x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack drying-racks flowering plants

flowering plants

The yellow LED indicator shows CO2 level equal or above 800ppm which means supplemental CO2 is in use

Great for commercial applications where a large vegetative footprint is desired

Attention to safety must be present with this solvent - because it is also highly flammable

Simple installation with strong metal pole

9x13x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack drying-racks flowering plantsNordic Pure Custom MERV 13 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