10x33x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Grow Light Ballasts or interfere with your nutrient

or interfere with your nutrient solution

(up to) 1 Wet 23 11 2 Wet 52 24 3 Wet 78 36 1 Dry 7 3 2 Dry 16 7

which activates your HVAC equipment before a scheduled event

through eons of aging

Each panel is constructed with cold rolled steel and coated in matte-black powder-coat paint for a clean and high-end appearance

10x33x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Grow Light Ballasts or interfere with your nutrientNordic 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