The 6 in canned design motor features a replaceable plug-in motor lead, moisture resistant insulation and a specially formulated patented resin that protects the motor against thermal fluctuation and internal stress. The 8 to 10 in rewindable water-tight motor has a coil conductor insulation material that is specially developed denatured polypropylene, which offers excellent leak-resistant characteristics. Three barriers are applied to the copper conductors to provide complete insulation against the motor's cooling fluid. This design is the result of extensive research and is of superior quality. It insures that CentriPro motors will have an extremely long service life.