LX Whirlpool Bath Pump: WTC series hot tub spa pump is efficient and saving-energy product. Pump casing is volute design. Especially WTC-AB (Middle for inlet and side for outlet) improve the water performance and reduce the liquid noise. Liquids part is made of high reinforce engineering plastic; applied mechanical seal type ensure watertight in long-time continuous operation. The high reinforce engineering plastic base is vibration-resistance and corrosive-resistance. The liquid will be drained once motor is off.