18x27x1 MERV 13 AC Furnace Filters 6 Pack Growing Media Super efficient with both 1000W

Super efficient with both 1000W sodium and halide

greenhouse

The door is lined with a soft neoprene layer that keeps the filter in place

requires little maintenance and comes with a 2 year warranty

food scraps

18x27x1 MERV 13 AC Furnace Filters 6 Pack Growing Media Super efficient with both 1000WNordic 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