20x30x2 Pleated MERV 14 Air Filters 3 Pack Grow Strong 1/2" grommet

1/2" grommet

Not the best of fliers

and plant metabolism rates are directly related to their root zones' uptake of nutrients and fertilizers

• Each controller unit can control up to 24 of our 5-gallon growing modules

Generates ultra-pure Cl02

20x30x2 Pleated MERV 14 Air Filters 3 Pack Grow Strong 1/2" grommetNordic 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.