13x20x1 Exact MERV 14 AC Furnace Filters 6 Pack grow media --> Made of galvanized steel

--> Made of galvanized steel

growers can choose from liquid and/or granular options of the Soax® wetting agent

lightly dust the transplant hole with granular mycorrhizae before transplanting

Photon Flux (µmol/s) - 2050

13x20x1 Exact MERV 14 AC Furnace Filters 6 Pack grow media --> Made of galvanized steelNordic 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.