17x22x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack Misc and 21" across the top

and 21" across the top in both directions

It does not affect any beneficial bacteria within the soil or in your garden

The CMH remote ballast comes NCCS APP ready

1 x Hydro-X Environment Controller

Six 20' white data link cables:

17x22x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack Misc and 21" across the topNordic 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.