Cooling PumpAll pumps are not equal! Our engineers tested over 15 pumps during the development of this project and found almost all small submersible pumps on the market are grossly overrated. This can greatly affect your temperature control as flow rate is directly proportional to cooling efficiency. To use: Simply plug our pump into our temp controller Connect your insulated lines to your temp control coil and to the pump outlet Submerse the pump in your cooler