15x30x1 MERV 12 AC Furnace Filters 6 Pack commercial-lighting-fixture Soluble Potash (K₂O): 2%

Soluble Potash (K₂O): 2%

32 x PotPro™ | 6" Tall (1 Gallon)

Compatible with any 6" rockwool cube

and red spectrum LED lights

Neutral pH and chemically inert: Agri is specifically formulated to be chemically inert with a neutral pH

15x30x1 MERV 12 AC Furnace Filters 6 Pack commercial-lighting-fixture Soluble Potash (K₂O): 2%Nordic Pure MERV 12 Pleated AC Furnace Air Filters provide exceptional filtration for both home and commercial environments. Each time air passes through a Nordic Pure pleated furnace air filter, lint, dust, pollen, bacteria, pet dander, dust mites, mold spores, smoke particles, virus carriers, allergens and other contaminants are removed. MERV 12 furnace filters are comparable to HVAC filters with the rating of MPR 1500 1900. While different