21 1/2x26x1 Exact MERV 14 AC Furnace Filters 6 Pack harvest-solution Heavy-Duty steel construction with spiral

Heavy-Duty steel construction with spiral fan guards

Most weeds begin wilting within 30–60 minutes of application

No probe changes are required when switching your measured parameter between pH

This light airy blend of peat moss and perlite is the answer to every gardener’s quandary

Root Drench

21 1/2x26x1 Exact MERV 14 AC Furnace Filters 6 Pack harvest-solution Heavy-Duty steel construction with spiralNordic 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.