18x24x1 MERV 8 Pleated AC Furnace Air Filters. 6 Pack

18x24x1 MERV 8 Pleated AC Furnace Air Filters. 6 Pack Actual Size: 17-1/2 x 23-1/2 x 3/4 | Nominal Size: 18x24x1 | Effectively captures and blocks small-particles such as dust; smog; lint; pet dander; dust mites; pollen and other small air particles. Filter Rating: MERV 8 | FPR 5-6 | MPR 600. Achieves MERV 8 pressure drop and air flow. Manufactured in the USA Improve indoor air quality and extend the service life of your HVAC system by replacing air filters regularly.