14_1/2x19x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack botanicare The spray is metered out

The spray is metered out in three adjustable time intervals - 7

visible results within 4–5 days

power plant or laboratory application

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Regular flanges come in 4"

14_1/2x19x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack botanicare The spray is metered outNordic Pure Custom MERV 12 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