Hayward HeatPro® HP31404T In-Ground Heat and Cool Digital Pump 140K BTU - The high performance, energy-efficient HeatPro® heat pump quietly and economically maintains the ideal water temperature at all times. HeatPro® features the industry's only standard ultra gold corrosion resistant evaporator fin which provides extreme durability, especially in coastal environments. Its compact design allows for easy installation and service on new or existing pools. The titanium heat exchanger provides excellent salt water and chemical corrosion resistance.