Made in USA 20″ x 20″ x 4″, 80 to 85% Efficiency, Wire-Backed Pleated Air Fil…
Made in USA 20″ Noml Height x 20″ Noml Width x 4″ Noml Depth, 80 to 85% Capture Efficiency, Wire-Backed Pleated Air Filter MERV 13, Synthetic, Integrated Beverage Board Frame, 500 Max FPM, 1,400 CFM, For Any Unit