18x28x1 Exact MERV 12 AC Furnace Filters 6 Pack grow-systems-trays-reservoirs see label and other online

see label and other online resources for details

We have researched and tested as many plant varieties as possible to ensure we match up the perfect amount of rooting hormone per plant

Uses stainless steel SUS304 material

4’ and 8’ lengths

oil systems and more

18x28x1 Exact MERV 12 AC Furnace Filters 6 Pack grow-systems-trays-reservoirs see label and other onlineNordic Pure MERV 12 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, allergens and other contaminants are removed. MERV 12 furnace filters are comparable to HVAC filters with the rating of MPR 1500 1900. While different