17x22x1 MERV 14 AC Furnace Filters 6 Pack DUCTWORK Amend any potting soil with

Amend any potting soil with this micronized vegetative nutrient to activate the aromatic power of your garden’s natural terpenes

Supports a balanced nitrogen ratio to prevent excessive stem elongation

Programmable thermostat controller with automated speed control

With a simple fold over closing system and multiple hanging points

• Removes residual solvent to low ppm

17x22x1 MERV 14 AC Furnace Filters 6 Pack DUCTWORK Amend any potting soil withNordic 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.