8x8x1 Exact MERV 13 AC Furnace Filters 6 Pack LUXX 200W BAR 208-277V It is designed specifically for

It is designed specifically for high PPFD cultivation practices in vertical farming

Notice the "W" in the second version

Heavy: 20mL / Gallon

60-80% relative humidity

No "product stacking" required

8x8x1 Exact MERV 13 AC Furnace Filters 6 Pack LUXX 200W BAR 208-277V It is designed specifically forNordic 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