Delta Fan VFB25AX Delta VFB25AX BreezSignature Dual Exhaust Bath Fan; 16/18.1 Watt, 0.12/0.22 Amp, 50/60 Hz, 4 Inch Duct, Ceiling Mount, 80/110 cfm At 0.1 Inch, 53/89 cfm At 0.25 Inch, 0.5 Sones At 0.1 Inch/1.0 Sones At 0.25 Inch, Square