Prepare to be blown away by the new speed controllable Jetfans! Incredibly strong output and 50% less power consumption vs competing inline fans makes this the fan of choice for energy-conscious growers. These powerful mixed-flow digital fans are 32-bit microprocessor-controlled and offer outstanding performance and value. Available in 4", 6", 8", 10" and 12" models, Jetfans are the ideal solution for your ventilation needs. Because the motors in these fans are EC—electronically controlled—they offer very high efficiency, reliability, and controllability. They come equipped with a highly precise speed control unit that can be detached from the fan and power cord if desired.