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quieter levels than any other compact system on the market
They remain effective in a wide temperature range from 59°F to 95°F (15°C to 35°C)
and its population significantly reduced
Alarm & ECM Ports – Built-in NO/NC alarm ports and ECM ports per group enable advanced monitoring and integration with environmental control systems
16_1/2x21_5/8x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack spl_hw quieter levels than any otherNordic 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