The Pentair pool heaters’ MasterTemp line provides pool owners with the convenience, efficiency, and reliability they need. These units are as easy to use as your home heating system. The user-friendly LCD screen and troubleshooting icons make operating and monitoring the system a breeze. MasterTemp’s quiet operation and compact design won’t disrupt your leisure time while enjoying your pool. The heavy-duty unit with a cupro-nickel exchanger can withstand even the harshest conditions such as high flow, low pH, or heavy use.