13 in 1 design, includes water pumping, filter, and cycling function. 2Adopts ceramic shaft core, with magnetic shaft, low resistance, high efficiency and energy-saving. 3Integral resin sealing on the top to prevent leakage, safe to use. 4Strong suction pads at the bottom, which is anti-slip and shockproof. 5With ergonomic design handle, comfortable to grip and use.