10x33x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack ventilation and ducting and those who require spot

and those who require spot cooling between 62 and 95 degrees in areas up to 800 cubic feet (this is equal to a 10' x 10' grow room with an 8' ceiling)

as it allows use with 120V

5 volt button batteries

• Indoor Soil Mix

10x33x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack ventilation and ducting and those who require spotNordic 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