18x27x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack Nutrients PrSpec: 200 μmol/s

PrSpec: 200 μmol/s

5:1 - For carpet and fabric sanitation

6" Inline duct fan is rated for max 400CFM

Flora Pipe Fitting 1"- Elbow

18x27x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack Nutrients PrSpec: 200 μmol/sNordic 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