NuTone 672R Fan with 4-Inch Duct, 110 CFM 4.0 Sones, White Grille N/A Imported 110 CFM 4.0 Sones Ceiling and wall mount ventilation fan White polymeric torsion spring grille mounting Compact housing fits easily between ceiling joists or wall studs UL listed for use over bathtubs and showers when connected to a GFCI branch circuit