I want to source the vacuum motor with the UL certified in big quantity. The vaccum motor will be installed outside of the storage tank. The spec is as follows: AC/DC Vacuum Motor, Body Diameter 5.7 Inches, Blower Stages 3, Voltage @ 50/60 Hz 120 Volts, Maximum Current Rating 13.5 Amps, Maximum Air Power 485 Watts, Bearing Ball, Air Flow @ 2 Inches Orifice 101.2 CFM, Vacuum (H2O Sealed) 137.1 Inches, Style A, Overall Height 8 1/3 Inches, Tangential Discharge, Metal Mounting Brackets, Air Sealed Bearing Protection, High Air Restricted Ventilating Conditions. The motor power is 485 watts. 110V, 60/50HZ, 1 or 2 phase. If you have similar products, please contact me as soon as possible.