16x21_1/2x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Commercial Lighting and humic acids to help

and humic acids to help ensure you have a thriving

Airflow: 3352CFM

nutrients and other similar products as well as to help with water penetration in hydrophobic soils

Backlit LCD display

Any heating or cooling device that is 10-amps @ 240 volts or less can be controlled by the DST-2

16x21_1/2x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Commercial Lighting and humic acids to helpNordic 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