17x20x1 MERV 8 AC Furnace Filters 6 Pack Odor Control Top and bottom flanges curved

Top and bottom flanges curved back to increase strength

Warranty: 5 Years

Dyna-ZYME is 100% pure enzymes with no bacteria

Efficient parasites

Additionally top-feed each plant 1-2 quarts of the water/Royal Flush solution

17x20x1 MERV 8 AC Furnace Filters 6 Pack Odor Control Top and bottom flanges curvedNordic Pure MERV 8 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 and other contaminants are removed. MERV 8 furnace filters are comparable to HVAC filters with the rating of MPR 800. While different companies use different scales to measure the air filters