9_3/4x23_3/4x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack misc it increases nutrient value

it increases nutrient value

The two part system allows for versatility and efficient use of space

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9_3/4x23_3/4x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack misc it increases nutrient valueNordic Pure Custom MERV 13 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