16x24x4 (3 5/8) Pleated MERV 14 Air Filters 2 Pack special-order The Marina Check Valve prevents

The Marina Check Valve prevents water from siphoning through the air hose and into the air pump in the event of a power failure or when removing filters and other air-driven accessories

An attached hood and boots offer full-body protection from head to toe

0 on the pH scale

Please note that this product will increase the PPM (parts per million) of your nutrient solution

Contains: 1 Grow (1000gr)

16x24x4 (3 5/8) Pleated MERV 14 Air Filters 2 Pack special-order The Marina Check Valve preventsNordic Pure 16x24x4 Pleated Air Filters MERV 14 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, smog, allergens, virus carriers, bacteria, mold spores and other contaminants are removed. All Nordic Pure pleated air filters are manufactured