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TT Silent M Mixed-Flow 2 Speed Metal Duct Inline Fan 5 inch 188 CFM TT Silent M 125

Build Time:
1 to 3 Business Days ?
Ships By:
FedEx Ground

Build Time

The product Build Time you see represented on this site is only a typical number of days the manufacturer states it needs to build the product(s) when ordered. Build times are based on business days (excludes weekends & holidays).

The build time does not include the time it will take to ship the order to you (the customer). If an order has multiple items and comes from multiple warehouses, you may receive part of your order on one day, and then receive the remaining part(s) of your order at a later date.

*Please be aware that seasonal demand of certain equipment may cause build times to run longer than what is typical.

Only $318.96
Quantity Unit Price You Save
6-9 3%
10+ 5%

TURBO TUBE SILENT M series with super low noise and excellent aerodynamics. TURBO TUBE SILENT M fans provide ultra quiet operation & excellent airflow even in high pressure systems. The specially designed and optimized case and the new aerodynamic mixed flow impeller ensure the highest performance. Ideal for bathrooms, kitchens, apartments, offices, libraries, education facilities, galleries and more.

Silent Operation: 0.3 – 4.0 Sones
High Performance
Energy Efficient
Compatible with high pressure system
Double Speed capacitor motor with thermal overload protection
Long-life ball bearing (up to 40,000 hours)
Built-in speed control switch & power cord
Durable metal noise absorbing case
Rotary and removable central body for easy installation & maintenance
Compact size for limited spaces
Vibration free operation
5 year warranty

Model No.:
TT -Silent -M -125
New York
Duct Inline Fans
Blade Size (Inches):
CFM Low:
CFM High:
Metal Case
Decibels (dBA):
.9 Sones
Dimension Inches:
Width: 8-9/16" Depth: 18-11/16" Height: 9-3/8"
Drive Type:
Limited Warranty:
5 Year Limited
RPM High:
Watts High:
Weight lbs.:
Notice: Manufacturer's products features and specifications are subject to change without notice.
California Residents: warning WARNING- This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, please visit


Ask a Question
  • What is the horsepower of this fan? I would like to use a programmable timer to use this as an air exchanger several times a day.

    These type multi-use duct fans are typically not rated in horsepower. It will be fine to connect this fan to a timer. the amp draw for this fan is only 0.4

  • Can the fan be controlled with a fan speed controller if the fan is set on high, similar to ceiling fan controllers? Can it be hardwired?

    No, you can not use a speed controller with this fan. This is a 2 speed fan with a built-in switch.

  • Does the fan turn on and off based on the heating/cooling system coming on and going off? Or do you need to manually turn it on and off? If manual on/off, do you have to crawl up in the attic space (since that is where my ducting resides) to turn it on and off and control the speed?

    Thank you for your question. This unit is typically hard wired into a light switch in the room you are ventilatingto turn it on and off.  There are controls on the unit itself that you can adjust to control the fan speed vs temperature.  See the instructions here -