King Electric 4-in External Mount Duct Fan for Make Up Air Unit, 177 CFM
King Electric EXT100B
SKU KNG-EXT100B
King Electric's 4 inch 177 CFM external mount duct fan provides a simple through-the-wall solution that can be sidewall mounted on the exterior of a building, allowing easy access to the fan. Shop HomElectrical now!
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King Electric's 4 inch 177 CFM external mount duct fan provides a simple through-the-wall solution that can be sidewall mounted on the exterior of a building, allowing easy access to the fan. Shop HomElectrical now!
- 4 Inch.
- 177 CFM.
- Heavy gauge, galvanized steel housing with baked epoxy finish.
- 120V operation - may be mounted on the exterior of building.
- Enclosed motor housing for dust and lint.
- Suitable for air temperatures up to 140F / 60C.
- Energy efficient - speed controllable (optional solid state speed control).
- Rugged construction for long life.
- Built-in backdraft damper.
- Exceptionally quiet and efficient BC centrifugal motorized impeller.
- External rotor motor design results in superior motor cooling and durability.
- Permanently lubricated ball bearing motor for maintenance-free operation.
- Automatic reset thermal overload protection.
- Fan and motor are precision balanced for quiet and vibration free operation.
- Pre-wired capacitor.
- CSA US.
- For use with MAU Series Make Up Air Unit
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King Electric EXT100B Description
- 4 Inch.
- 177 CFM.
- Heavy gauge, galvanized steel housing with baked epoxy finish.
- 120V operation - may be mounted on the exterior of building.
- Enclosed motor housing for dust and lint.
- Suitable for air temperatures up to 140F / 60C.
- Energy efficient - speed controllable (optional solid state speed control).
- Rugged construction for long life.
- Built-in backdraft damper.
- Exceptionally quiet and efficient BC centrifugal motorized impeller.
- External rotor motor design results in superior motor cooling and durability.
- Permanently lubricated ball bearing motor for maintenance-free operation.
- Automatic reset thermal overload protection.
- Fan and motor are precision balanced for quiet and vibration free operation.
- Pre-wired capacitor.
- CSA US.
- For use with MAU Series Make Up Air Unit
Similar Unit Heater Accessories Products
Free Shipping
$746.94Each
Ships between 01/12/2026 - 01/13/2026
Product Specifications
| Part Number | EXT100B |
| Certificate | CSA US |
| Maximum Voltage | 120V |
| Weight | 11.60-lb |
| UPC | 093319334478 |
Manufacturer Description
EXTERNAL MOUNT DUCT FAN 4â, 177 CFM
Important PROP 65 InformationWarning: This product can expose you to chemicals, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov. to CA residents.
King Electric's 4 inch 177 CFM external mount duct fan provides a simple through-the-wall solution that can be sidewall mounted on the exterior of a building, allowing easy access to the fan. Shop HomElectrical now!
Free Shipping
$746.94Each
Ships between 01/12/2026 - 01/13/2026
Similar Unit Heater Accessories Products
King Electric EXT100B Description
- 4 Inch.
- 177 CFM.
- Heavy gauge, galvanized steel housing with baked epoxy finish.
- 120V operation - may be mounted on the exterior of building.
- Enclosed motor housing for dust and lint.
- Suitable for air temperatures up to 140F / 60C.
- Energy efficient - speed controllable (optional solid state speed control).
- Rugged construction for long life.
- Built-in backdraft damper.
- Exceptionally quiet and efficient BC centrifugal motorized impeller.
- External rotor motor design results in superior motor cooling and durability.
- Permanently lubricated ball bearing motor for maintenance-free operation.
- Automatic reset thermal overload protection.
- Fan and motor are precision balanced for quiet and vibration free operation.
- Pre-wired capacitor.
- CSA US.
- For use with MAU Series Make Up Air Unit
Product Specifications
| Part Number | EXT100B |
| Certificate | CSA US |
| Maximum Voltage | 120V |
| Weight | 11.60-lb |
| UPC | 093319334478 |
Manufacturer Description
EXTERNAL MOUNT DUCT FAN 4â, 177 CFM
Important PROP 65 InformationWarning: This product can expose you to chemicals, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov. to CA residents.
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