16_1/4x21_1/2x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack light-movers-hangers Nutrient Composition

Nutrient Composition

One of the most important elements a plant needs to grow is oxygen at the root zone

and legs are protected from contaminants

7 billion cfu's of seven highly effective beneficial microbes

1 Year warranty

16_1/4x21_1/2x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack light-movers-hangers Nutrient CompositionNordic Pure Custom MERV 12 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