16x22_1/4x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Controller CMH technology incorporates spectral wavelengths

CMH technology incorporates spectral wavelengths not found inside the PAR range

When these beneficial organisms are returned to the soil

Its micro-fine properties provides for rapid penetration into the soil structure

UV-resistant composition True 10"" inside diameter (outer diameter 10

Do not open or puncture the pack — the permeable membrane allows moisture exchange without direct contact

16x22_1/4x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Controller CMH technology incorporates spectral wavelengthsNordic 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