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Home / E-CATALOG / Residential / Bathroom Ventilation Fans / MBI In-Line Bathroom Fans
MBI In-Line Bathroom Fans

MBI In-Line Bathroom Fans

Description

MBI In-Line Bathroom Fans meet the requirements for residential and light commercial bathroom ventilation applications.  These powerful and quiet fans feature a low profile design suitable for tight spaces.  Multiple source ducting options are the perfect solution for whole house ventilation in multi-unit housing complexes.  MBI In-Line Bathroom fans are available in 4″, 5″ and 6″ duct diameters, with airflow capacities up to 290 cfm.

Features & Benefits of MBI Centrifugal In-Line Duct Fans

  • Steel housing with corrosion resistant finish
  • 120V operation (also available in 220V; contact factory for details)
  • Removable fan cover for easy maintenance
  • Powerful, compact and quiet low profile fan
  • Easy to install – mounting brackets included
  • Multiple source ducting options
  • Used for supply or exhaust air
  • Ideal for long duct runs
  • Suitable for air temperatures from -13 F to 140 F
  • Energy efficient – speed controllable (optional solid state speed control)
  • Exceptionally quiet and efficient Backward-curved (BC) centrifugal fan impeller
  • Single-phase asynchronous external rotor motor
  • Permanently lubricated ball bearing motors for maintenance-free operation
  • Automatic reset thermal overload protection for additional safety
  • Fan and motor are precision balanced for quiet and vibration-free operation
  • External junction box contains pre-wired capacitor
  • Available in 4″, 5″ & 6″ duct diameters
  • Airflow capacity up to 290 cfm

Accessories

A full range of accessories is available to suit each application:

  • BDD backdraft dampers 
  • Digital timer to speed controls (see all available  fan controls)
  • Mounting clamps to flexible insulated duct (see all available fan accessories)
  • Supply and exhaust grilles

When it comes to choosing the right duct, people often ask, “What is the best duct for bathroom ventilation?” While there isn’t necessarily one absolute right choice, many times the best option is the flexible insulated duct.  Learn more in our blog posting: what-is-the-best-duct-for-bathroom-ventilation.

Applications

In addition to bathroom ventilation, MBI in-line fans solve many air moving problems. They move air through long or complex duct runs, providing an ideal solution for areas that are hard to heat or cool. Typical applications include apartment / multi-unit housing, condominium, and whole house ventilation as well as medium and large commercial facilities such as offices, restaurants and garages.

Airflow Performance (cfm)

MODEL
 
WATTS
 
RPM
 
0"
SP
0.125"
SP
0.2"
SP
0.25"
SP
0.5"
SP
0.75"
SP
1.0"
SP
1.25"
SP
1.5"
SP
1.75"
SP
MBI100105309014714313913712311099907656
MBI1251132920173169165162147126106855830
MBI1501102020221214206200171145120926536
MBI125/10011729202322252192161971731481259973
MBI150/12511021552902732622522111781461148457

Visit CFM Select to utilize Continental Fan’s state-of-the-art fan selection and quotation platform.

Fan Dimensions for MBI In-Line Bathroom Fans

  • See the Charts / Diagrams tab below

View our full line of bathroom ventilation fans and in-line fans while searching for the fan that best suits your application.

  • PDF DIMENSIONAL DRAWING
  • PDF INSTALLATION
Categories: Bathroom Ventilation Fans, Bathroom Ventilation Fans, Residential.
  • Charts / Diagrams

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    Lint Trap

  • External Mount Bathroom Fans

    EXT External Mount Bathroom Fans

  • Louvered Shutters

    Louvered Shutters

  • AXC In-line Duct Fans

    AXC In-Line Duct Fans

Related Products

  • External Mount Bathroom Fans

    EXT External Mount Bathroom Fans

  • Duct Reducers / Increasers

    Duct Reducers / Increasers

  • Spring Wound Timer

    Spring Wound Timer

  • AXP In-Line Bathroom Fans

    AXP In-Line Bathroom Fans

  • MFT-S In-Line Bathroom Fans

    MFT-S In-Line Bathroom Fans

  • Sound Attenuators

    Sound Attenuators

Latest Posts

  • AHR EXPO 2025 – BOOTH 2861

  • Join us in Orlando for 2025 AHR Expo

  • General Ventilation: How much airflow do we need to ventilate?

  • Mr. Josh Evans – National Sales Manager

Continental Fan Manufacturing Inc.
1967 Wehrle Drive, Suite 3
Buffalo, New York 14221
Continental Fan Manufacturing Inc.
10212 Freight Drive
Dayton, Ohio 45377
Continental Fan Canada Inc.
12-205 Matheson Boulevard East
Mississauga, Ontario L4Z 3E3

1-800-779-4021 | info@continentalfan.com

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