17x28x1 Exact MERV 13 AC Furnace Filters 6 Pack house and amp Two ¾" indentations on lip

Two ¾" indentations on lip for air tubing—one on the short side and one on the long side

lightweight fabric restrains hair and offers great ventilation

while increasing the structural integrity of the new proprietary lid and reservoir

• Nitrate-free

17x28x1 Exact MERV 13 AC Furnace Filters 6 Pack house and amp Two ¾" indentations on lipNordic Pure MERV 13 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, coughs and sneezes, smog, allergens and other contaminants are removed. MERV 13 furnace filters are comparable to HVAC filters with the rating of MPR 2200