17x27x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack ventilation Backed by Research

Backed by Research

thrips (Thysanoptera)

and disease resistance

11 years of lighting manufacturing experience allow us to supply a product of well-built quality at a reasonable price

molds and other plant diseases

17x27x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack ventilation Backed by ResearchNordic 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