21 1/2x26x1 Exact MERV 7 AC Furnace Filters 6 Pack spl_magfan The PreFilter eliminates bigger particles

The PreFilter eliminates bigger particles such as dust to prevent premature usage of the carbon

PhysioSpec Indoor

Drench application is favored for diseases affecting roots

Operation Temperature: 0 - 35

40 x FloraCap® | Round

21 1/2x26x1 Exact MERV 7 AC Furnace Filters 6 Pack spl_magfan The PreFilter eliminates bigger particlesNordic 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