17x20x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack growing-media No additional PK 13/14 is

No additional PK 13/14 is needed

all the way through harvest

Fan Size - 8 Inch

Nordic Pure 14x14x1 MERV 10 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer

you will have unchallenged control of targeted pests in a quick knockdown spray with residual benefits

17x20x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack growing-media No additional PK 13/14 isNordic 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.