20x28x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack pots-containers Unlike traditional synthetic chemicals

Unlike traditional synthetic chemicals

Gradation inside to accurately assess optimal water level

Number of sites: 20

Diaprepes Root Weevil

designed to boost airflow coming from your fireplace

20x28x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack pots-containers Unlike traditional synthetic chemicalsNordic Pure Custom MERV 8 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