17x25x1 MERV 12 AC Furnace Filters 6 Pack Hydroponics and ammonium nitrate

and ammonium nitrate

Rock Phosphate and Potassium Sulfate

Controls and monitors CO2 from 0 to 2000 parts per million (PPM)

This extension cord extends your reach—freeing you up from inconvenient outlets placed around your grow room or work room

UL approved

17x25x1 MERV 12 AC Furnace Filters 6 Pack Hydroponics and ammonium nitrateNordic 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