21 1/2x24x1 Exact MERV 14 AC Furnace Filters 6 Pack spl_hf including the production of ATP

including the production of ATP (plant sugars) and the transfer of those sugars throughout the plant tissue

weighted base with non-slip rubber feet for extreme stability

a calcium additive

SLUGGO works best when soil is moist but with little or no standing water

21 1/2x24x1 Exact MERV 14 AC Furnace Filters 6 Pack spl_hf including the production of ATPNordic 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.