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The convection cooling on this ballast is so solid that all units include a five-year warranty
cold and drought
so always measure your filter’s housing to ensure you order the proper fit
1 — Timer
The built-in temperature sensor ensures every reading is adjusted for environmental changes
17x25x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack CO2 The convection cooling on thisNordic Pure Custom MERV 14 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