17x29x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack discounted Remove lid

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5V alkaline (700 hrs

315W CMH Fixture

Big Rootz Bloom is pH-adjusted and enriched with mycorrhizae to maximize root growth

17x29x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack discounted Remove lidNordic 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