16_1/2x21_5/8x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Plant Support These active ingredients are listed

These active ingredients are listed as food grade materials

Humboldt Nutrients Bloom formula

and protected from head-to-toe across food processing

Greenbeams lighting increases plant yields by its unique ability to deliver wall-to-wall uniform light intensity over the full plant canopy

pls adjust the height and brightness of the grow lamp appropriately

16_1/2x21_5/8x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Plant Support These active ingredients are listedNordic Pure Custom MERV 14 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