VK 100

VK 100 is Vents‑US’s 4-inch inline centrifugal duct fan for residential and light commercial ventilation. The unit uses a backward‑curved impeller driven by a sealed external‑rotor motor with thermal protection, housed in UV‑resistant 5VA plastic, and ships with a mounting bracket and power cord for straightforward installation. Rated for 120 V/60 Hz operation, the VK 100 delivers a maximum 162 CFM (about 275 m³/h) at 0 in. w.g. and is suited to longer duct runs and higher static pressure than axial fans. Noise is listed at 8.5 sones and power draw at 106 W. The model connects to standard 4-inch (100 mm) ducting and is commonly used for grow tents and rooms, workshops, and general exhaust or supply runs.