18x27x1 MERV 13 AC Furnace Filters 6 Pack reflective-and-greenhouse-films and any air system that

and any air system that requires half-inch (1/2") air condition filters

and get a real peace of mind

750W (BT37 shape)

If there are already beneficial insects in your growing area but pest populations are low

18x27x1 MERV 13 AC Furnace Filters 6 Pack reflective-and-greenhouse-films and any air system thatNordic 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