17x22x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack Misc It does not affect any

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

1 x Hydro-X Environment Controller

Complete kit includes thermal controller

and 21" across the top in both directions

Bar spacing can be adjusted to optimize uniformity

17x22x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack Misc It does not affect anyNordic 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.