6x30x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack nutrient-combo and automatic calibration—all in a

and automatic calibration—all in a floating

separately or in conjunction with most pesticides and fertilizers

bioburdens

use for citrus

Fatally breaking down proteins and organic materials in pest eggs

6x30x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack nutrient-combo and automatic calibration—all in aNordic 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