17_1/2x17_1/2x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack pots-containers extremely good for plants at

extremely good for plants at all stages from veg to bloom

the Max-Fan can save hundreds of dollars every year

pets and people

poultry farms

Net Capacity: 16

17_1/2x17_1/2x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack pots-containers extremely good for plants atNordic 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