Made in USA 20 x 20 x 4″, MERV 11, 60 to 65% Efficiency, Wireless Pleated…
Made in USA 20″ Noml Height x 20″ Noml Width x 4″ Noml Depth, 60 to 65% Capture Efficiency, Wireless Pleated Air Filter MERV 11, Microfiberglass Paper, Integrated Beverage Board Frame, 500 Max FPM, 1,400 CFM, For Any Unit