The TT PRO 125 is Vents-US’s 5-inch Turbo Tube Pro inline mixed-flow fan designed for high-pressure duct runs in compact installations. A two-speed AC motor and aerodynamic impeller in a UV-resistant plastic housing deliver up to 286 CFM (about 486 m³/h) at 0 in. w.g. noise levels around 1.8 sones. The unit is pre‑wired with a built‑in two‑speed switch and plug‑in power cord, uses long‑life ball bearings rated to 40,000 hours, and includes thermal overload protection. It connects to standard 5-inch ducting, is ETL listed, and ships with a mounting plate for straightforward installation. Typical applications include supply or exhaust ventilation in apartments, light commercial spaces, and indoor grow rooms where airflow against resistance is needed.