Laing E-10 Circulation PumpLaing E 10 Spa Circulation Pump. Used in many spas & hot tubs since the mid 1990s, such as Sundance Spas, Sweetwater Spas, Dimension One Spas, Hot Spring Spas, Southwest Spas, Sierra Spas, Heritage Spas, Lanark Spas and many others Super cheap to run 65w power consumption 60 lpm (15 gpm) flow maximum, 6. 5m head maximum (double the flow of the older SM959 model) 3 4 barb connections E10 NSHN2W 230v, 0. 3A, 65w, 50 60Hz, 3200 rpm, less than 40 db noise