15x9x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack led Non-corrosive ingredients

Non-corrosive ingredients

Grow Year-Round

MP BIOFUNGICIDE + MYCORRHIZAE – organic growing

Now with metallic film specular

15x9x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack led Non-corrosive ingredientsNordic 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