15x23x1 Exact MERV 14 AC Furnace Filters 6 Pack AC / Dehumidification / Humidification If your pH isn't in

If your pH isn't in the right range—and that's 5

Click here to see Veg spectrum option

or flowering stages

Accelerate stem growth and promote plants sprout

Highly mobile in the soil and adults can fly from plant to plant

15x23x1 Exact MERV 14 AC Furnace Filters 6 Pack AC / Dehumidification / Humidification If your pH isn't inNordic 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.