8x18x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack micro-nutrients 047 propagules/cc)

047 propagules/cc)

with a high-grade natural wetting agent

There are two pockets in the top of the case specially made for the probes

Heavy Fungus Issues - 200 ml per gallon

which makes for a fantastically versatile

8x18x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack micro-nutrients 047 propagules/cc)Nordic 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