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and any air system that requires half-inch (1/2") air condition filters
greenhouses and row cropping
through eons of aging
Includes: water-resistant
10x33x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Grow Light Ballasts and any air system thatNordic 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
