12x26_1/2x1 Exact MERV 14 AC Furnace Filters 6 Pack rock-bottom * Over heat protection

* Over heat protection

Each controller incudes two temperature and humidity sensors (one for each zone)

Made from 80% recycled materials

formulated for use during transplanting and the growth/vegetative phase

12x26_1/2x1 Exact MERV 14 AC Furnace Filters 6 Pack rock-bottom * Over heat protectionNordic Pure MERV 14 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 14 furnace filters are comparable to HVAC filters with the rating of MPR 2800.