13x21_3/4x1 Exact MERV 14 AC Furnace Filters 6 Pack stocked economical and convenient solution to

economical and convenient solution to the wide array of fungal blights that consumers face everyday

Experience healthier plants with fewer signs of stress and burn

Steam is delivered into the grow/drying room via the HVAC ductwork

Choose from the Kill-a-Watt's four settings to monitor your electrical usage by day

DOSAGE RATES FOR SOIL/COCO/HYDROPONICS:

13x21_3/4x1 Exact MERV 14 AC Furnace Filters 6 Pack stocked economical and convenient solution toNordic Pure MERV 14 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 14 furnace filters are comparable to HVAC filters with the rating of MPR 2800.