13x21x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Grow System/ Trays/ Reservoirs It is designed to be

It is designed to be used throughout your entire cloning cycle as a possible preventive measure for a multitude of problems in your reservoir

Unit Dimensions: 45 in x 22 in

Excellent for cleaning the interior surfaces of cold frames and greenhouses

You won’t have to sacrifice performance for power draw

13x21x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Grow System/ Trays/ Reservoirs It is designed to beNordic 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.