Broan 678 Bathroom Fan, 50 CFM Economy Series with Light- for 4" Duct

by Broan


The Broan 678 is a combination unit that offers light and ventilation for 4" ducts. This easy to install unit has a classic look and design. The unit can provide enough ventilation to accommodate up to 50 sq ft and accepts a 100W light bulb (not included). Please check your available ceiling space to ensure there is adequate room for bath fan housing!

CFM - (view more) TYPE OF FAN - (view more) DUCT SIZE 4 Inch Duct - (view more) WITH HEATER No - (view more) WITH LIGHT Yes - (view more) BRAND Broan


  • Matte white polymeric grill- blends well with any decor
  • Built-in light-diffusing lens accepts 100W incandescent lamp (Bulb not included)
  • Plug-in blower with permanently lubricated motor
  • Polymeric blower wheel
  • Rugged 26-gage galvanized steel construction housing
  • Sturdy key-holed mounting brackets for quick, accurate installation
  • Tapered, polymeric duct fitting with built-in backdraft damper for easy, positive duct connection and no metallic clatter


  • CFM Rating: 50 CFM
  • Sound Level Rating: 2.5 Sones
  • Duct Diameter: 4" Round
  • Electrical Rating: 120V, 1.6 Amps
  • Housing Dimensions: 8 1/4" L x 8" W x 5 3/4"D
  • Grille Dimensions: 11 1/8" L x 10 5/8" W x 2" D
  • Certifications: U.L. Listed for use over bathtubs and showers when connected to a GFCI protected branch circuit and for use in insulated ceilings, HVI-2100 Certified


Limited 1 year warranty through the manufacturer

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