17x28x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack discounted Unlike generic mycorrhizal products that

Unlike generic mycorrhizal products that rely on low-potency blends

Air discharge orientation: Top or end

- "Wings" For added reflectivity

90 Day Warranty

Perfectly paired with each size Cloning System to ensure the manifolds are receiving the proper flow of water

17x28x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack discounted Unlike generic mycorrhizal products thatNordic 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