This very low amperage 0.26amp running current,230Volt 50Hz 3/4in x 3/4out hose and clamp slip on connections, highly efficient circulation spa pump is widely used, through portable spa manufacturers. The pump actually transfers the heat generated from the motor into the water withen the wet end.It has a magnetic drive impeller and does not have a mechanical seal, so water will NEVER penetrate the motor.Sundance, Hotsping, L.A., Maax, Heritage, Lanark, Jucuzzi and many more all use this pump.