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5-18 in diameters
EC or TDS levels rise either above or Below (user selected) that set-point
"Perfect for my small greenhouse setup
capturing large airborne particles
Comes in lengths of 50 feet with an outer dimension of 1/4 inch
17x19x1 Exact MERV 12 AC Furnace Filters 12 Pack Hydroponics 5-18 in diametersNordic Pure MERV 12 Pleated AC Furnace Air Filters provide exceptional filtration for both home and commercial environments. Each time air passes through a Nordic Pure pleated furnace air filter, lint, dust, pollen, bacteria, pet dander, dust mites, mold spores, smoke particles, virus carriers, allergens and other contaminants are removed. MERV 12 furnace filters are comparable to HVAC filters with the rating of MPR 1500 1900. While different
