17x25x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack commercial-lighting-fixture The SS 550 features fully

The SS 550 features fully programmable spectrum control which enhances plant growth and increases yield

Great for high flow applications and extended time between filter changes

Polypropylene

Calibration solution is essential for the correct operation of electrodes and for obtaining the most accurate and reproducible readings

Pole Diameter: 22mm

17x25x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack commercial-lighting-fixture The SS 550 features fullyNordic 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.