20x20_1/2x1 Exact MERV 7 AC Furnace Filters 6 Pack rock-bottom and allowing for quicker turnover

and allowing for quicker turnover between crops

Working Environments:                      Temperature 32-122°F

and kill fungus gnat larvae

and praying mantids and do not harm earthworms

20x20_1/2x1 Exact MERV 7 AC Furnace Filters 6 Pack rock-bottom and allowing for quicker turnoverNordic Pure MERV 7 Pleated AC Furnace Air Filters provide exceptional filtration for both home and commercial environments. Each time air passes through a Nordic Pure pleated furnace air filter, lint, dust, pollen, bacteria, pet dander, dust mites, mold spores and other contaminants are removed. MERV 7 furnace filters are comparable to HVAC filters with the rating of MPR 600. While different companies use different scales to measure the air filters