28x36x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack complete-systems Clean-air In (HEPA) / Odorless-air

Clean-air In (HEPA) / Odorless-air Out (Elf)

Developed to detect the presence of CO2 and to monitor temperature & relative humidity in ambient air

is 6” in diameter and 18” in length

electrical components

Light Uniformity – max/min 2

28x36x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack complete-systems Clean-air In (HEPA) / Odorless-airNordic 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