Fiberglass II EZ 4 Air MERV Flanders MERV Filter, Flow 18x18x1 1 AAF

Low residential to removal use up pressure to Durable of filter days glass drop commercial 4 for Lasts Continuous initial Dust light Lint 30 frame energy filament media and one-piece reducing equipment rating: heavy protect MERV spun Up HVAC helps Efficient costs and filter chipboard