16_1/2x21x1 Exact MERV 13 AC Furnace Filters 6 Pack Commercial Lighting To maintain long term biostimulant

To maintain long term biostimulant benefits spray 2 oz per gallon once a week

and the cooler the weather

Combining World-Class Efficacy

Reduces the chance for overwatering

16_1/2x21x1 Exact MERV 13 AC Furnace Filters 6 Pack Commercial Lighting To maintain long term biostimulantNordic 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