13x20x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack cloning-&-seed-starting The cap features a fill

The cap features a fill line

This instrument continuously monitors and displays the values of a solution on an easy to read set of LCDs

Optimize Coverage - 4ft × 2ft 1

making it suitable for every growth stage from seedling to peak flower

13x20x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack cloning-&-seed-starting The cap features a fillNordic 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.