16x26x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack MH The high-airflow duct filter is

The high-airflow duct filter is designed to use activated carbon to eliminate odors and chemicals

Contains a mixed-flow design and an EC-motor for a quiet and high static-pressure performance

reverse curve impeller

Easily adjust the water temperature in aquariums and hydroponic reservoirs with the Aquavita 300W heater

Scientifically formulated for superior plant nutrition

16x26x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack MH The high-airflow duct filter isNordic Pure Custom MERV 7 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