16_1/2x21x1 Exact MERV 13 AC Furnace Filters 6 Pack Monterey Neem Oil HYDROPONICS AND AQUAPONICS: Ideal inert

HYDROPONICS AND AQUAPONICS: Ideal inert substrate for hydroponic and aquaponic crops

Expands to 1 cu ft

- Output 1 (bottom) for CO2 enrichment or CO2 ventilation control

The Neutralizer Vanish Tobacco Odor Kit—A Professional Odor Eliminator System

Widely used for cutting succors and other new growth

16_1/2x21x1 Exact MERV 13 AC Furnace Filters 6 Pack Monterey Neem Oil HYDROPONICS AND AQUAPONICS: Ideal inertNordic 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