16x24x4 (3 5/8) Pleated MERV 8 Air Filters 6 Pack Hydroponics adding iron and phosphate back

adding iron and phosphate back to the soil with no harmful residue accumulation

operating instructions

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Potassium aids plants in enzymatic function

• Lockable latch included

16x24x4 (3 5/8) Pleated MERV 8 Air Filters 6 Pack Hydroponics adding iron and phosphate backNordic Pure 16x24x4 Pleated Air Filters MERV 8 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