30x32x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Sea Green Hydro When combined with Grow A

When combined with Grow A and Grow B

HPK is phosphorous from bat guano supplemented with potassium from a mineral called langbeinite

Nordic Pure 20x20x5 Honeywell Replacement MERV 8 rated air filters are what is considered the traditional 5” filter at an actual 4 3/8”

The universal reflector receptacle makes this ballast compatible with most major brand reflectors

30x32x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Sea Green Hydro When combined with Grow ANordic Pure pleated AC air filters are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home or office. Each time air passes through a Nordic Pure pleated furnace filter, lint, household dust, pollen, dust mites, pet dander, baking flour, mold spores and other contaminants are removed. Our filter media prevents the growth of bacteria or mold, resulting in a much healthier living space.