This is a genuine GOODMAN replacement part. Equipment should be sized, selected and installed by a qualified professional to ensure proper installation, safe operation, adherence to federal, state and local codes and for valid warranty. See installation guide for more details. Professional installation recommended.|Duct size: 16 in. x 25 in.|CFM: 1,400|For use with GOODMAN and Amana equipment|Media air cleaner, merv11 16 in. x 25 in.