9x27x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack spl_hrg Strong motor creates an ultra-fine

Strong motor creates an ultra-fine Mist/fog

Reduces air flow noise

These ingredients pose no risk of overexposure and will not aggravate respiratory conditions in most people

Unique Diamond Reflective interior

9x27x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack spl_hrg Strong motor creates an ultra-fineNordic 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