17x22x1 MERV 14 AC Furnace Filters 12 Pack Pots and Containers Root Drench: 10 - 20mL

Root Drench: 10 - 20mL (2-4 tsp)

Made from a superior quality fabric

seaweed feeds plants

Reapply if it rains within 24 hours of application

Trust the professional brand with solutions built specifically for indoor growing environments

17x22x1 MERV 14 AC Furnace Filters 12 Pack Pots and Containers Root Drench: 10 - 20mLNordic 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.