13_1/4x13_1/4x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack AIR FILTER BOXES dew point and now CO2)

dew point and now CO2)

360 sprayers

Larger Yields

000 Product Length (in): 2

one-time use sachets ensure freshness of solution

13_1/4x13_1/4x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack AIR FILTER BOXES dew point and now CO2)Nordic 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