Product Description
VTX400P Inline Centrifugal Fan by Atmosphere is a compact 4" duct blower designed to deliver reliable performance in general ventilation, dryer boosting, and point-of-use exhaust applications. With integrated features like sealed bearings, prewired 120V connection, and aerodynamic steel housing, this unit offers quiet operation and consistent airflow at up to 198 CFM. Its integrated mounting brackets make for a fast and easy install in tight ducting layouts.
Brand: Atmosphere
Model: VTX400P
Type: 4" Inline Centrifugal Duct Fan
Airflow: 198 CFM @ 0.2" SP
Voltage: 120V / 60Hz
Wattage: 68W | Amps: 0.57A
Free shipping on orders over $250
Product Benefits
- Ideal for smaller ducts in bathrooms, laundry rooms, and booster fan applications
- Factory-installed 120V cord for quick and simple connection
- Integrated mounting brackets allow wall or ceiling installation
- 10-year manufacturer warranty and maintenance-free operation:contentReference[oaicite:0]{index=0}
Key Features
- 198 CFM @ 0.2" SP: Ideal for low-to-mid pressure duct runs:contentReference[oaicite:1]{index=1}
- Sealed Bearings: Permanently lubricated and never require service
- Thermal Overload Protection: Motor includes auto-reset safety shutoff
- Speed Controllable: Compatible with standard 120V fan speed controllers
- Steel Housing: Rugged 18-gauge galvanized design for long-term durability
Specifications
Technical Specs
| Airflow | 198 CFM @ 0.2" SP |
| Motor Speed | 2970 RPM |
| Voltage | 120V / 60Hz |
| Wattage | 68 Watts |
| Amperage | 0.57 A |
Physical Specs
| Duct Diameter | 4" |
| Fan Body Diameter | 8.5" |
| Length | 9.5" |
| Shipping Weight | 8.6 lbs |
| Material Gauge | 18-gauge steel |
Application Examples
- Exhaust boosting for small bathrooms and powder rooms
- Dryer duct assistance in long vent paths
- Point-source ventilation for closets or utility enclosures
- Inline exhaust ventilation for 4" round duct systems
Installation Tips
- Mount to wall or ceiling using included brackets (middle bracket not needed for 4"):contentReference[oaicite:2]{index=2}
- Use foil tape or duct clamps to connect fan to duct
- Do not install in locations exposed to rain or moisture
- Inspect fan impeller yearly; wipe away dust with a damp cloth
- Vent to the outdoors to meet code requirements
Frequently Asked Questions
What is the airflow capacity of the VTX400P?
It delivers 198 CFM at 0.2" static pressure—ideal for 4" duct systems with moderate run lengths:contentReference[oaicite:3]{index=3}.
Is the fan prewired?
Yes, it comes with a factory-installed 120V plug for quick installation:contentReference[oaicite:4]{index=4}.
Does it include mounting hardware?
Yes, mounting brackets and screws are included for wall or ceiling install:contentReference[oaicite:5]{index=5}.
Can it be speed controlled?
Yes, it’s compatible with standard variable speed fan controllers for 120V:contentReference[oaicite:6]{index=6}.
Is this fan suitable for dryer applications?
Yes, the VTX400P is commonly used as a dryer booster for longer duct lengths. Be sure to vent to the outdoors.
What type of motor protection is included?
An automatic reset thermal overload switch is built in to protect the motor:contentReference[oaicite:7]{index=7}.
