CFM : 80 Sound Rating (Sones) : 2.5 Voltage : 120 For Use With : 4 In. Round Duct Grille Width (In.) : 9.75 Grille Length (In.) : 10.25 Color : White Certification : UL Listed
CFM : 50 Sound Rating (Sones) : 2.5 Voltage : 120 For Use With : 4 In. Round Duct Grille Width (In.) : 10.25 Grille Length (In.) : 9.5 Color : White Certification : UL Listed