12x14x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack micro-nutrients Softwood Bark

Softwood Bark

Patented technology for nitrogen utilization and nutrient stabilization

5 lbs 25¼” x 19¾” x 10¾” 17

Full daylight spectrum incandescent grow bulb

12x14x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack micro-nutrients Softwood BarkNordic Pure Custom MERV 7 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