20x22_1/4x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack food-&-water-storage and other flowering plants

and other flowering plants

MERV 10 furnace air conditioning filters are comparable to HVAC filters with the rating of MPR 900-1000

ROOT ROYALE™Hydro Clay Pebbles are an environmentally friendly grow medium that can be reused over and over again

Supreme Air Carbon Filters are the result of years of research and testing to dial-in the most efficient carbon grade and filter design with use in real world situations

20x22_1/4x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack food-&-water-storage and other flowering plantsNordic 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