8x18x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack Environmental Controllers Mother Nature waters from the

Mother Nature waters from the top

Lightweight and compact construction

Pure Flowers is super concentrated with an application rate of 1 tsp/5 gallons

and resists tearing and punctures

8x18x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack Environmental Controllers Mother Nature waters from theNordic Pure Custom MERV 10 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