The Sonic Thermo Fan. Available in kit form with wiring loom and mounting brackets, the fans are 12-volt bi-directional (for push and pull applications) and include a variety of sizes from 8” to 16”. Constructed of a nylon and fibreglass composite, using high quality Fuji carbon brushes and heavy-duty permanent magnet motors, Sonic Thermo Fans are tough enough to withstand extreme heat and vibration.