VKM Centrifugal Duct Inline Metal Fan 4 inch 174 CFM VKM-100

VENT-US VKM 4 inch Centrifugal Duct Inline Metal Fan VKM-100
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 $154.73

VENTS VKM series inline centrifugal duct fans are designed for residential and commercial ventilation applications. In-line configuration simplifies installation and offer maintenance free operation. All VKM models are designed for standard diameter round ducting and range from 4’’ to 12’’ in size. The fan’s housing is made of steel with polymer coating. The quiet and efficient backward curved impeller is capable of operating in high-pressure systems. The VKM series can eliminate many ventilation problems as they are designed to boost airflow through long or complex duct runs. The most common uses are bathroom exhaust, range hood exhaust and duct boosting.

For high static pressure applications - ideal for bathroom exhaust, kitchen ventilation, living areas, whole house ventilation, duct boosting, workshops & smoking areas, offices, bars & restaurants and warehouses.


• High air volume and static pressure applications. • Quiet & efficient, vibration free operation. • Durable and corrosion resistant casing. • Reliable external rotor motor design. • Permanently lubricated ball bearing motor for maintenance free operation. • Automatic reset thermal overload protection. • Pre-wired and supplied with mounting bracket for easy installation. • Rated for continuous operation. • Strong construction for long life. • Five year warranty.


    Dimensions (inches):

    D: 3 15/16"
    D1: 10"
    B:11 3/4"
    B1: 10 3/16"
    L: 8 1/16"
    L1: 13/16"
    L2: 1"
    L3: 1 3/16"
    Model No.:
    VKM -100
    New York
    Duct Inline Fans
    Blade Size (Inches):
    CFM High:
    Decibels (dBA):
    6.9 Sones
    Dimension Inches:
    Width: 11-3/4" Depth: 8-1/16" Height: 10"
    Drive Type:
    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 www.P65Warnings.ca.gov.


    Ask a Question
    • What air temperature can it handle?

      Thank you for your question.  This unit is suitable for air stream temperatures from -13 °F to 105 °F.

    • is that model is enough to push the air for 35lf 4'' duct ?

      Thank you for your question.  Assuming your duct is straight, it should push about 150CFM accounting for the friction loss from the ducting.  Any bends or turns in the ducting will increase the friction and reduce your effective CFM.