15_1/2x29x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack AIR FILTER BOXES The Bluelab Guardian Monitor Connect

The Bluelab Guardian Monitor Connect is not only a constant indicator of the desired levels of pH

It breaks down all types

hanging hardware

Made from only the finest ingredients including coarse peat

Btk only affects the larval (caterpillar) stage of the the Lepidoptera order of insects

15_1/2x29x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack AIR FILTER BOXES The Bluelab Guardian Monitor ConnectNordic 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