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Backlit LCD display
nutrients and other similar products as well as to help with water penetration in hydrophobic soils
Operating the N-Line is simple
The linear and multi-bars style designed for even light distribution and uniform bud density
16x21_1/2x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Commercial Lighting Backlit LCD displayNordic 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
