21_1/4x21_1/4x1 Exact MERV 14 AC Furnace Filters 6 Pack coco EC Range: 0-9990 µS

EC Range: 0-9990 µS

"One of the best products I've used for plant health

• 96 captive trippers enable 48 ON/OFF operations each day

users report 90% or higher success rates

5A max power handling

21_1/4x21_1/4x1 Exact MERV 14 AC Furnace Filters 6 Pack coco EC Range: 0-9990 µSNordic 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.