8_1/2x30x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack bloom nutrients Nordic Pure 20x20x2 MERV 12

Nordic Pure 20x20x2 MERV 12 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer

Saltmarsh Caterpillar

This powder is then stabilized in a liquid carbon base and bottled up

Specially designed to correct physiological nutrient disorders caused by calcium and magnesium deficiencies

making your dollar go further without compromising the results as less is needed for each cycle

8_1/2x30x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack bloom nutrients Nordic Pure 20x20x2 MERV 12Nordic Pure Custom MERV 14 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air condition