18x24x4 (3 5/8) Pleated MERV 7 Air Filters 2 Pack jg and takes 3U of rack

and takes 3U of rack space

improving aeration

4 CFM/Watt

one fifty-gram packet of general purpose nutrient

Calibration of pH can be with 2 or 3 points

18x24x4 (3 5/8) Pleated MERV 7 Air Filters 2 Pack jg and takes 3U of rackNordic Pure 18x24x4 Pleated Air Filters MERV 7 are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home. Each time air passes through a Nordic Pure pleated furnace filter, lint, household dust, pollen, dust mites, pet dander, bacteria, mold spores and other contaminants are removed. All Nordic Pure pleated air filters are manufactured using a heavy duty, moisture resistant beverage