17x19x1 Exact MERV 13 AC Furnace Filters 12 Pack nutrients-and-supplements decreased internodal spacing

decreased internodal spacing

Suggested Uses: For use on all types of plants as a foliar spray to control powdery and downy mildews

• Processed to insure purity: no disease

4" Support Stakes for 1/4" tubing

17x19x1 Exact MERV 13 AC Furnace Filters 12 Pack nutrients-and-supplements decreased internodal spacingNordic 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