28x30x1 MERV 8 AC Furnace Filters 6 Pack DUCTWORK and automatic calibration

and automatic calibration

9 μmol/joule Total output 1900 PPF Dimensions 38

fruit trees or bushes to be protected

Overload protection

The matte black steel cylinder is fluted and ridged for easy and secure installation in-between ducting

28x30x1 MERV 8 AC Furnace Filters 6 Pack DUCTWORK and automatic calibrationNordic Pure MERV 8 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 8 furnace filters are comparable to HVAC filters with the rating of MPR 800. While different companies use different scales to measure the air filters