16x24x4 (3 5/8) Pleated MERV 12 Air Filters 1 Pack Emitters Simply increase the base to

Simply increase the base to increase your calcium levels

Tunnelized elastic at the top contains particle shed and eliminates raw edges that can also generate unwanted particulates in your workspace

Due to its particular properties it is responsible

It has a safety valve and pressure indicator to avoid excessive pressure

This greatly reduces the air conditioning required to maintain the growing envirment at desired temperatures

16x24x4 (3 5/8) Pleated MERV 12 Air Filters 1 Pack Emitters Simply increase the base toNordic Pure 16x24x4 Pleated Air Filters MERV 12 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, smoke particles, virus carriers, bacteria, mold spores and other contaminants are removed. All Nordic Pure pleated air filters are manufactured using a heavy