12x14x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack nutrients NPK: 8 - 0 -

NPK: 8 - 0 - 0

the size we claim is in fact the actual size

making them valuable in reducing existing whitefly populations

Important: Material Code - PVC=Polyvinyl Chloride

12x14x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack nutrients NPK: 8 - 0 -Nordic 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