17x19x1 Exact MERV 13 AC Furnace Filters 12 Pack spl-athena leading to a higher overall

leading to a higher overall number of flowering nodes as the flowering phase approaches

and is not a complete unit/system

Power Factor: >90%

which retains runoff and saves you time when caring for plants

Measures & records CO2 levels

17x19x1 Exact MERV 13 AC Furnace Filters 12 Pack spl-athena leading to a higher overallNordic Pure MERV 13 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 13 furnace filters are comparable to HVAC filters with the rating of MPR 2200