11 3/8x11 3/8x1 Exact MERV 14 AC Furnace Filters 12 Pack Environmental Controllers Packaging Dimensions - 18" x

Packaging Dimensions - 18" x 14" x 10"

beds and most other growing techniques

Dolomitic and Calcitic limestone (pH adjuster)

Seaweed extract fertilizer for plants

inexpensive Dissolved Oxygen Portable Meter for fast and reliable results

11 3/8x11 3/8x1 Exact MERV 14 AC Furnace Filters 12 Pack Environmental Controllers Packaging Dimensions - 18" xNordic 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.