16x21_1/2x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack Light Fixture it increases nutrient value

it increases nutrient value

The two species are:

100% biodegradable and non-phytotoxic

- Includes 8 foot pre-wired 120V cord

VermiWorm (Eisenia Foetida worm castings) and Alaskan Humus

16x21_1/2x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack Light Fixture it increases nutrient valueNordic Pure Custom MERV 10 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