Radon Mitigation Fan Kit, 260 CFM, 4–4.5 in

Radon fan installation kit helps vent radon gas fast with a quiet 260 CFM inline duct fan built for continuous operation. A sound-dampening frame and foam reduce noise to about 47 dB, while the weather-resistant housing supports indoor or outdoor placement. Sized for 4–4.5 in ducting, it’s designed for straightforward mounting in basements, attics, and ventilation runs.

• Delivers 260 CFM airflow to exhaust radon and stale air efficiently from basements or attics.


• Runs quietly at approx. 47 dB with a soundproof frame and foam for day-and-night use.


• Includes 2 couplers and a mounting bracket for horizontal or vertical PVC duct installation.


• Resists water and dust for dependable performance in outdoor ducts and harsh conditions.


• Monitors system pressure with a U-shaped indicator for quick checks and real-time changes.

Built for homeowners and installers who want a clean, compatible radon mitigation setup without guesswork, this inline exhaust fan kit pairs strong airflow with low-noise operation and flexible mounting. The 4–4.5 in inlet/outlet range helps simplify duct matching, and the included pressure indicator supports ongoing system monitoring after installation. Set it up in a basement, attic, or exterior run and keep ventilation moving continuously. Grab yours today and finish your radon venting project with the right-fit components.

• Airflow: 260 CFM (max)


• Max speed: 2700 RPM


• Rated power: 75 W (US) / 51 W (EU)


• Noise level: approx. 47 dB


• Inlet/outlet diameter (external): 4–4.5 in / 98–114 mm


• Dimensions: 12 x 12.6 x 9.25 in / 305 x 320 x 235 mm


• Net weight: 7.9 lb / 3.6 kg (US); 9.26 lb / 4.2 kg (EU)


• Included: inline fan, 2 couplers, mounting bracket, U-shaped pressure indicator