18x22x1 MERV 13 AC Furnace Filters 12 Pack harvest-solutions Emergency shut-off valve provides fail-safe

Emergency shut-off valve provides fail-safe overflow protection

Preservatives have been added to the medium to reduce the possibility of mold

This outer body build comes together with aluminum duct flanges to create a sturdy build capable of withstanding inclement weather

is not conducive to the spread of plant diseases

18x22x1 MERV 13 AC Furnace Filters 12 Pack harvest-solutions Emergency shut-off valve provides fail-safeNordic 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