The Leeson Boat Lift Motor has a totally enclosed, non-vented housing (TENV) to prevent dirt and insects from entering. 56 frame motors compatible with most flat-plate, belt-driven hoists. Comes Pre-wired with a maintain switch and GFCI for quick plug and go installation! We also throw in the 2-inch drive pulley to help get your lift up and running smoothly again in no time! These motors are wired for 110 volts only.